19423360

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 128

約数和(自身を含む): 52876800

約数和(自身を除く): 33453440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 89, 110, 124, 128, 155, 160, 176, 178, 220, 248, 310, 320, 341, 352, 356, 440, 445, 496, 620, 640, 682, 704, 712, 880, 890, 979, 992, 1240, 1364, 1408, 1424, 1705, 1760, 1780, 1958, 1984, 2480, 2728, 2759, 2848, 3410, 3520, 3560, 3916, 3968, 4895, 4960, 5456, 5518, 5696, 6820, 7040, 7120, 7832, 9790, 9920, 10912, 11036, 11392, 13640, 13795, 14240, 15664, 19580, 19840, 21824, 22072, 27280, 27590, 28480, 30349, 31328, 39160, 43648, 44144, 54560, 55180, 56960, 60698, 62656, 78320, 88288, 109120, 110360, 121396, 125312, 151745, 156640, 176576, 218240, 220720, 242792, 303490, 313280, 353152, 441440, 485584, 606980, 626560, 882880, 971168, 1213960, 1765760, 1942336, 2427920, 3884672, 4855840, 9711680, 19423360]

約数ペア:

[(1, 19423360), (2, 9711680), (4, 4855840), (5, 3884672), (8, 2427920), (10, 1942336), (11, 1765760), (16, 1213960), (20, 971168), (22, 882880), (31, 626560), (32, 606980), (40, 485584), (44, 441440), (55, 353152), (62, 313280), (64, 303490), (80, 242792), (88, 220720), (89, 218240), (110, 176576), (124, 156640), (128, 151745), (155, 125312), (160, 121396), (176, 110360), (178, 109120), (220, 88288), (248, 78320), (310, 62656), (320, 60698), (341, 56960), (352, 55180), (356, 54560), (440, 44144), (445, 43648), (496, 39160), (620, 31328), (640, 30349), (682, 28480), (704, 27590), (712, 27280), (880, 22072), (890, 21824), (979, 19840), (992, 19580), (1240, 15664), (1364, 14240), (1408, 13795), (1424, 13640), (1705, 11392), (1760, 11036), (1780, 10912), (1958, 9920), (1984, 9790), (2480, 7832), (2728, 7120), (2759, 7040), (2848, 6820), (3410, 5696), (3520, 5518), (3560, 5456), (3916, 4960), (3968, 4895)]