20181840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 160

約数和(自身を含む): 73495296

約数和(自身を除く): 53313456

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 48, 56, 60, 70, 80, 82, 84, 105, 112, 120, 123, 140, 164, 168, 205, 210, 240, 246, 280, 287, 293, 328, 336, 410, 420, 492, 560, 574, 586, 615, 656, 820, 840, 861, 879, 984, 1148, 1172, 1230, 1435, 1465, 1640, 1680, 1722, 1758, 1968, 2051, 2296, 2344, 2460, 2870, 2930, 3280, 3444, 3516, 4102, 4305, 4395, 4592, 4688, 4920, 5740, 5860, 6153, 6888, 7032, 8204, 8610, 8790, 9840, 10255, 11480, 11720, 12013, 12306, 13776, 14064, 16408, 17220, 17580, 20510, 22960, 23440, 24026, 24612, 30765, 32816, 34440, 35160, 36039, 41020, 48052, 49224, 60065, 61530, 68880, 70320, 72078, 82040, 84091, 96104, 98448, 120130, 123060, 144156, 164080, 168182, 180195, 192208, 240260, 246120, 252273, 288312, 336364, 360390, 420455, 480520, 492240, 504546, 576624, 672728, 720780, 840910, 961040, 1009092, 1261365, 1345456, 1441560, 1681820, 2018184, 2522730, 2883120, 3363640, 4036368, 5045460, 6727280, 10090920, 20181840]

約数ペア:

[(1, 20181840), (2, 10090920), (3, 6727280), (4, 5045460), (5, 4036368), (6, 3363640), (7, 2883120), (8, 2522730), (10, 2018184), (12, 1681820), (14, 1441560), (15, 1345456), (16, 1261365), (20, 1009092), (21, 961040), (24, 840910), (28, 720780), (30, 672728), (35, 576624), (40, 504546), (41, 492240), (42, 480520), (48, 420455), (56, 360390), (60, 336364), (70, 288312), (80, 252273), (82, 246120), (84, 240260), (105, 192208), (112, 180195), (120, 168182), (123, 164080), (140, 144156), (164, 123060), (168, 120130), (205, 98448), (210, 96104), (240, 84091), (246, 82040), (280, 72078), (287, 70320), (293, 68880), (328, 61530), (336, 60065), (410, 49224), (420, 48052), (492, 41020), (560, 36039), (574, 35160), (586, 34440), (615, 32816), (656, 30765), (820, 24612), (840, 24026), (861, 23440), (879, 22960), (984, 20510), (1148, 17580), (1172, 17220), (1230, 16408), (1435, 14064), (1465, 13776), (1640, 12306), (1680, 12013), (1722, 11720), (1758, 11480), (1968, 10255), (2051, 9840), (2296, 8790), (2344, 8610), (2460, 8204), (2870, 7032), (2930, 6888), (3280, 6153), (3444, 5860), (3516, 5740), (4102, 4920), (4305, 4688), (4395, 4592)]