398506240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 216

約数和(自身を含む): 1096107264

約数和(自身を除く): 697601024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 83, 88, 110, 121, 124, 128, 155, 160, 166, 176, 220, 242, 248, 256, 310, 320, 332, 341, 352, 415, 440, 484, 496, 605, 620, 640, 664, 682, 704, 830, 880, 913, 968, 992, 1210, 1240, 1280, 1328, 1364, 1408, 1660, 1705, 1760, 1826, 1936, 1984, 2420, 2480, 2573, 2656, 2728, 2816, 3320, 3410, 3520, 3652, 3751, 3872, 3968, 4565, 4840, 4960, 5146, 5312, 5456, 6640, 6820, 7040, 7304, 7502, 7744, 7936, 9130, 9680, 9920, 10043, 10292, 10624, 10912, 12865, 13280, 13640, 14080, 14608, 15004, 15488, 18260, 18755, 19360, 19840, 20086, 20584, 21248, 21824, 25730, 26560, 27280, 28303, 29216, 30008, 30976, 36520, 37510, 38720, 39680, 40172, 41168, 43648, 50215, 51460, 53120, 54560, 56606, 58432, 60016, 73040, 75020, 77440, 80344, 82336, 87296, 100430, 102920, 106240, 109120, 113212, 116864, 120032, 141515, 146080, 150040, 154880, 160688, 164672, 200860, 205840, 218240, 226424, 233728, 240064, 283030, 292160, 300080, 311333, 321376, 329344, 401720, 411680, 436480, 452848, 480128, 566060, 584320, 600160, 622666, 642752, 658688, 803440, 823360, 905696, 960256, 1132120, 1168640, 1200320, 1245332, 1285504, 1556665, 1606880, 1646720, 1811392, 2264240, 2400640, 2490664, 2571008, 3113330, 3213760, 3293440, 3622784, 4528480, 4801280, 4981328, 6226660, 6427520, 7245568, 9056960, 9962656, 12453320, 12855040, 18113920, 19925312, 24906640, 36227840, 39850624, 49813280, 79701248, 99626560, 199253120, 398506240]

約数ペア:

[(1, 398506240), (2, 199253120), (4, 99626560), (5, 79701248), (8, 49813280), (10, 39850624), (11, 36227840), (16, 24906640), (20, 19925312), (22, 18113920), (31, 12855040), (32, 12453320), (40, 9962656), (44, 9056960), (55, 7245568), (62, 6427520), (64, 6226660), (80, 4981328), (83, 4801280), (88, 4528480), (110, 3622784), (121, 3293440), (124, 3213760), (128, 3113330), (155, 2571008), (160, 2490664), (166, 2400640), (176, 2264240), (220, 1811392), (242, 1646720), (248, 1606880), (256, 1556665), (310, 1285504), (320, 1245332), (332, 1200320), (341, 1168640), (352, 1132120), (415, 960256), (440, 905696), (484, 823360), (496, 803440), (605, 658688), (620, 642752), (640, 622666), (664, 600160), (682, 584320), (704, 566060), (830, 480128), (880, 452848), (913, 436480), (968, 411680), (992, 401720), (1210, 329344), (1240, 321376), (1280, 311333), (1328, 300080), (1364, 292160), (1408, 283030), (1660, 240064), (1705, 233728), (1760, 226424), (1826, 218240), (1936, 205840), (1984, 200860), (2420, 164672), (2480, 160688), (2573, 154880), (2656, 150040), (2728, 146080), (2816, 141515), (3320, 120032), (3410, 116864), (3520, 113212), (3652, 109120), (3751, 106240), (3872, 102920), (3968, 100430), (4565, 87296), (4840, 82336), (4960, 80344), (5146, 77440), (5312, 75020), (5456, 73040), (6640, 60016), (6820, 58432), (7040, 56606), (7304, 54560), (7502, 53120), (7744, 51460), (7936, 50215), (9130, 43648), (9680, 41168), (9920, 40172), (10043, 39680), (10292, 38720), (10624, 37510), (10912, 36520), (12865, 30976), (13280, 30008), (13640, 29216), (14080, 28303), (14608, 27280), (15004, 26560), (15488, 25730), (18260, 21824), (18755, 21248), (19360, 20584), (19840, 20086)]