16990740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 56963088

約数和(自身を除く): 39972348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 53, 60, 65, 78, 90, 106, 117, 130, 137, 156, 159, 180, 195, 212, 234, 260, 265, 274, 318, 390, 411, 468, 477, 530, 548, 585, 636, 685, 689, 780, 795, 822, 954, 1060, 1170, 1233, 1370, 1378, 1590, 1644, 1781, 1908, 2055, 2067, 2340, 2385, 2466, 2740, 2756, 3180, 3445, 3562, 4110, 4134, 4770, 4932, 5343, 6165, 6201, 6890, 7124, 7261, 8220, 8268, 8905, 9540, 10335, 10686, 12330, 12402, 13780, 14522, 16029, 17810, 20670, 21372, 21783, 24660, 24804, 26715, 29044, 31005, 32058, 35620, 36305, 41340, 43566, 53430, 62010, 64116, 65349, 72610, 80145, 87132, 94393, 106860, 108915, 124020, 130698, 145220, 160290, 188786, 217830, 261396, 283179, 320580, 326745, 377572, 435660, 471965, 566358, 653490, 849537, 943930, 1132716, 1306980, 1415895, 1699074, 1887860, 2831790, 3398148, 4247685, 5663580, 8495370, 16990740]

約数ペア:

[(1, 16990740), (2, 8495370), (3, 5663580), (4, 4247685), (5, 3398148), (6, 2831790), (9, 1887860), (10, 1699074), (12, 1415895), (13, 1306980), (15, 1132716), (18, 943930), (20, 849537), (26, 653490), (30, 566358), (36, 471965), (39, 435660), (45, 377572), (52, 326745), (53, 320580), (60, 283179), (65, 261396), (78, 217830), (90, 188786), (106, 160290), (117, 145220), (130, 130698), (137, 124020), (156, 108915), (159, 106860), (180, 94393), (195, 87132), (212, 80145), (234, 72610), (260, 65349), (265, 64116), (274, 62010), (318, 53430), (390, 43566), (411, 41340), (468, 36305), (477, 35620), (530, 32058), (548, 31005), (585, 29044), (636, 26715), (685, 24804), (689, 24660), (780, 21783), (795, 21372), (822, 20670), (954, 17810), (1060, 16029), (1170, 14522), (1233, 13780), (1370, 12402), (1378, 12330), (1590, 10686), (1644, 10335), (1781, 9540), (1908, 8905), (2055, 8268), (2067, 8220), (2340, 7261), (2385, 7124), (2466, 6890), (2740, 6201), (2756, 6165), (3180, 5343), (3445, 4932), (3562, 4770), (4110, 4134)]