20698860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 192

約数和(自身を含む): 75866112

約数和(自身を除く): 55167252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 17, 20, 21, 26, 28, 30, 34, 35, 39, 42, 51, 52, 60, 65, 68, 70, 78, 84, 85, 91, 102, 105, 119, 130, 140, 156, 170, 182, 195, 204, 210, 221, 223, 238, 255, 260, 273, 340, 357, 364, 390, 420, 442, 446, 455, 476, 510, 546, 595, 663, 669, 714, 780, 884, 892, 910, 1020, 1092, 1105, 1115, 1190, 1326, 1338, 1365, 1428, 1547, 1561, 1785, 1820, 2210, 2230, 2380, 2652, 2676, 2730, 2899, 3094, 3122, 3315, 3345, 3570, 3791, 4420, 4460, 4641, 4683, 5460, 5798, 6188, 6244, 6630, 6690, 7140, 7582, 7735, 7805, 8697, 9282, 9366, 11373, 11596, 13260, 13380, 14495, 15164, 15470, 15610, 17394, 18564, 18732, 18955, 20293, 22746, 23205, 23415, 26537, 28990, 30940, 31220, 34788, 37910, 40586, 43485, 45492, 46410, 46830, 49283, 53074, 56865, 57980, 60879, 75820, 79611, 81172, 86970, 92820, 93660, 98566, 101465, 106148, 113730, 121758, 132685, 147849, 159222, 173940, 197132, 202930, 227460, 243516, 246415, 265370, 295698, 304395, 318444, 344981, 398055, 405860, 492830, 530740, 591396, 608790, 689962, 739245, 796110, 985660, 1034943, 1217580, 1379924, 1478490, 1592220, 1724905, 2069886, 2956980, 3449810, 4139772, 5174715, 6899620, 10349430, 20698860]

約数ペア:

[(1, 20698860), (2, 10349430), (3, 6899620), (4, 5174715), (5, 4139772), (6, 3449810), (7, 2956980), (10, 2069886), (12, 1724905), (13, 1592220), (14, 1478490), (15, 1379924), (17, 1217580), (20, 1034943), (21, 985660), (26, 796110), (28, 739245), (30, 689962), (34, 608790), (35, 591396), (39, 530740), (42, 492830), (51, 405860), (52, 398055), (60, 344981), (65, 318444), (68, 304395), (70, 295698), (78, 265370), (84, 246415), (85, 243516), (91, 227460), (102, 202930), (105, 197132), (119, 173940), (130, 159222), (140, 147849), (156, 132685), (170, 121758), (182, 113730), (195, 106148), (204, 101465), (210, 98566), (221, 93660), (223, 92820), (238, 86970), (255, 81172), (260, 79611), (273, 75820), (340, 60879), (357, 57980), (364, 56865), (390, 53074), (420, 49283), (442, 46830), (446, 46410), (455, 45492), (476, 43485), (510, 40586), (546, 37910), (595, 34788), (663, 31220), (669, 30940), (714, 28990), (780, 26537), (884, 23415), (892, 23205), (910, 22746), (1020, 20293), (1092, 18955), (1105, 18732), (1115, 18564), (1190, 17394), (1326, 15610), (1338, 15470), (1365, 15164), (1428, 14495), (1547, 13380), (1561, 13260), (1785, 11596), (1820, 11373), (2210, 9366), (2230, 9282), (2380, 8697), (2652, 7805), (2676, 7735), (2730, 7582), (2899, 7140), (3094, 6690), (3122, 6630), (3315, 6244), (3345, 6188), (3570, 5798), (3791, 5460), (4420, 4683), (4460, 4641)]