20172568850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^2$

素因数の和:545

約数の個数: 144

約数和(自身を含む): 46084639680

約数和(自身を除く): 25912070830

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 61, 70, 95, 122, 133, 175, 190, 223, 266, 305, 350, 427, 446, 475, 610, 665, 854, 950, 1115, 1159, 1330, 1525, 1561, 2135, 2230, 2318, 3050, 3122, 3325, 4237, 4270, 5575, 5795, 6650, 7805, 8113, 8474, 10675, 11150, 11590, 13603, 15610, 16226, 21185, 21350, 27206, 28975, 29659, 39025, 40565, 42370, 49729, 57950, 59318, 68015, 78050, 81130, 95221, 99458, 105925, 136030, 148295, 190442, 202825, 211850, 248645, 258457, 296590, 340075, 348103, 405650, 476105, 497290, 516914, 680150, 696206, 741475, 944851, 952210, 1243225, 1292285, 1482950, 1740515, 1809199, 1889702, 2380525, 2486450, 2584570, 3033469, 3481030, 3618398, 4724255, 4761050, 6066938, 6461425, 6613957, 8702575, 9045995, 9448510, 12922850, 13227914, 15167345, 17405150, 18091990, 21234283, 23621275, 30334690, 33069785, 42468566, 45229975, 47242550, 57635911, 66139570, 75836725, 90459950, 106171415, 115271822, 151673450, 165348925, 212342830, 288179555, 330697850, 403451377, 530857075, 576359110, 806902754, 1061714150, 1440897775, 2017256885, 2881795550, 4034513770, 10086284425, 20172568850]

約数ペア:

[(1, 20172568850), (2, 10086284425), (5, 4034513770), (7, 2881795550), (10, 2017256885), (14, 1440897775), (19, 1061714150), (25, 806902754), (35, 576359110), (38, 530857075), (50, 403451377), (61, 330697850), (70, 288179555), (95, 212342830), (122, 165348925), (133, 151673450), (175, 115271822), (190, 106171415), (223, 90459950), (266, 75836725), (305, 66139570), (350, 57635911), (427, 47242550), (446, 45229975), (475, 42468566), (610, 33069785), (665, 30334690), (854, 23621275), (950, 21234283), (1115, 18091990), (1159, 17405150), (1330, 15167345), (1525, 13227914), (1561, 12922850), (2135, 9448510), (2230, 9045995), (2318, 8702575), (3050, 6613957), (3122, 6461425), (3325, 6066938), (4237, 4761050), (4270, 4724255), (5575, 3618398), (5795, 3481030), (6650, 3033469), (7805, 2584570), (8113, 2486450), (8474, 2380525), (10675, 1889702), (11150, 1809199), (11590, 1740515), (13603, 1482950), (15610, 1292285), (16226, 1243225), (21185, 952210), (21350, 944851), (27206, 741475), (28975, 696206), (29659, 680150), (39025, 516914), (40565, 497290), (42370, 476105), (49729, 405650), (57950, 348103), (59318, 340075), (68015, 296590), (78050, 258457), (81130, 248645), (95221, 211850), (99458, 202825), (105925, 190442), (136030, 148295)]