21796720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 160

約数和(自身を含む): 61710336

約数和(自身を除く): 39913616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 31, 34, 40, 44, 47, 55, 62, 68, 80, 85, 88, 94, 110, 124, 136, 155, 170, 176, 187, 188, 220, 235, 248, 272, 310, 340, 341, 374, 376, 440, 470, 496, 517, 527, 620, 680, 682, 748, 752, 799, 880, 935, 940, 1034, 1054, 1240, 1360, 1364, 1457, 1496, 1598, 1705, 1870, 1880, 2068, 2108, 2480, 2585, 2635, 2728, 2914, 2992, 3196, 3410, 3740, 3760, 3995, 4136, 4216, 5170, 5270, 5456, 5797, 5828, 6392, 6820, 7285, 7480, 7990, 8272, 8432, 8789, 10340, 10540, 11594, 11656, 12784, 13640, 14570, 14960, 15980, 16027, 17578, 20680, 21080, 23188, 23312, 24769, 27280, 28985, 29140, 31960, 32054, 35156, 41360, 42160, 43945, 46376, 49538, 57970, 58280, 63920, 64108, 70312, 80135, 87890, 92752, 99076, 115940, 116560, 123845, 128216, 140624, 160270, 175780, 198152, 231880, 247690, 256432, 272459, 320540, 351560, 396304, 463760, 495380, 544918, 641080, 703120, 990760, 1089836, 1282160, 1362295, 1981520, 2179672, 2724590, 4359344, 5449180, 10898360, 21796720]

約数ペア:

[(1, 21796720), (2, 10898360), (4, 5449180), (5, 4359344), (8, 2724590), (10, 2179672), (11, 1981520), (16, 1362295), (17, 1282160), (20, 1089836), (22, 990760), (31, 703120), (34, 641080), (40, 544918), (44, 495380), (47, 463760), (55, 396304), (62, 351560), (68, 320540), (80, 272459), (85, 256432), (88, 247690), (94, 231880), (110, 198152), (124, 175780), (136, 160270), (155, 140624), (170, 128216), (176, 123845), (187, 116560), (188, 115940), (220, 99076), (235, 92752), (248, 87890), (272, 80135), (310, 70312), (340, 64108), (341, 63920), (374, 58280), (376, 57970), (440, 49538), (470, 46376), (496, 43945), (517, 42160), (527, 41360), (620, 35156), (680, 32054), (682, 31960), (748, 29140), (752, 28985), (799, 27280), (880, 24769), (935, 23312), (940, 23188), (1034, 21080), (1054, 20680), (1240, 17578), (1360, 16027), (1364, 15980), (1457, 14960), (1496, 14570), (1598, 13640), (1705, 12784), (1870, 11656), (1880, 11594), (2068, 10540), (2108, 10340), (2480, 8789), (2585, 8432), (2635, 8272), (2728, 7990), (2914, 7480), (2992, 7285), (3196, 6820), (3410, 6392), (3740, 5828), (3760, 5797), (3995, 5456), (4136, 5270), (4216, 5170)]