18113920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 49351680

約数和(自身を除く): 31237760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 83, 88, 110, 124, 128, 155, 160, 166, 176, 220, 248, 310, 320, 332, 341, 352, 415, 440, 496, 620, 640, 664, 682, 704, 830, 880, 913, 992, 1240, 1328, 1364, 1408, 1660, 1705, 1760, 1826, 1984, 2480, 2573, 2656, 2728, 3320, 3410, 3520, 3652, 3968, 4565, 4960, 5146, 5312, 5456, 6640, 6820, 7040, 7304, 9130, 9920, 10292, 10624, 10912, 12865, 13280, 13640, 14608, 18260, 19840, 20584, 21824, 25730, 26560, 27280, 28303, 29216, 36520, 41168, 43648, 51460, 53120, 54560, 56606, 58432, 73040, 82336, 102920, 109120, 113212, 116864, 141515, 146080, 164672, 205840, 218240, 226424, 283030, 292160, 329344, 411680, 452848, 566060, 584320, 823360, 905696, 1132120, 1646720, 1811392, 2264240, 3622784, 4528480, 9056960, 18113920]

約数ペア:

[(1, 18113920), (2, 9056960), (4, 4528480), (5, 3622784), (8, 2264240), (10, 1811392), (11, 1646720), (16, 1132120), (20, 905696), (22, 823360), (31, 584320), (32, 566060), (40, 452848), (44, 411680), (55, 329344), (62, 292160), (64, 283030), (80, 226424), (83, 218240), (88, 205840), (110, 164672), (124, 146080), (128, 141515), (155, 116864), (160, 113212), (166, 109120), (176, 102920), (220, 82336), (248, 73040), (310, 58432), (320, 56606), (332, 54560), (341, 53120), (352, 51460), (415, 43648), (440, 41168), (496, 36520), (620, 29216), (640, 28303), (664, 27280), (682, 26560), (704, 25730), (830, 21824), (880, 20584), (913, 19840), (992, 18260), (1240, 14608), (1328, 13640), (1364, 13280), (1408, 12865), (1660, 10912), (1705, 10624), (1760, 10292), (1826, 9920), (1984, 9130), (2480, 7304), (2573, 7040), (2656, 6820), (2728, 6640), (3320, 5456), (3410, 5312), (3520, 5146), (3652, 4960), (3968, 4565)]