20123584420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1442

約数の個数: 144

約数和(自身を含む): 46772727120

約数和(自身を除く): 26649142700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 73, 74, 85, 146, 148, 170, 185, 289, 292, 340, 365, 370, 578, 629, 730, 740, 1156, 1241, 1258, 1289, 1445, 1460, 2482, 2516, 2578, 2701, 2890, 3145, 4964, 5156, 5402, 5780, 6205, 6290, 6445, 10693, 10804, 12410, 12580, 12890, 13505, 21097, 21386, 21913, 24820, 25780, 27010, 42194, 42772, 43826, 45917, 47693, 53465, 54020, 84388, 87652, 91834, 94097, 95386, 105485, 106930, 109565, 183668, 188194, 190772, 210970, 213860, 219130, 229585, 238465, 372521, 376388, 421940, 438260, 459170, 470485, 476930, 745042, 780589, 810781, 918340, 940970, 953860, 1490084, 1561178, 1599649, 1621562, 1862605, 1881940, 3122356, 3199298, 3243124, 3481589, 3725210, 3902945, 4053905, 6398596, 6963178, 7450420, 7805890, 7998245, 8107810, 13783277, 13926356, 15611780, 15996490, 16215620, 17407945, 27194033, 27566554, 31992980, 34815890, 54388066, 55133108, 59187013, 68916385, 69631780, 108776132, 118374026, 135970165, 137832770, 236748052, 271940330, 275665540, 295935065, 543880660, 591870130, 1006179221, 1183740260, 2012358442, 4024716884, 5030896105, 10061792210, 20123584420]

約数ペア:

[(1, 20123584420), (2, 10061792210), (4, 5030896105), (5, 4024716884), (10, 2012358442), (17, 1183740260), (20, 1006179221), (34, 591870130), (37, 543880660), (68, 295935065), (73, 275665540), (74, 271940330), (85, 236748052), (146, 137832770), (148, 135970165), (170, 118374026), (185, 108776132), (289, 69631780), (292, 68916385), (340, 59187013), (365, 55133108), (370, 54388066), (578, 34815890), (629, 31992980), (730, 27566554), (740, 27194033), (1156, 17407945), (1241, 16215620), (1258, 15996490), (1289, 15611780), (1445, 13926356), (1460, 13783277), (2482, 8107810), (2516, 7998245), (2578, 7805890), (2701, 7450420), (2890, 6963178), (3145, 6398596), (4964, 4053905), (5156, 3902945), (5402, 3725210), (5780, 3481589), (6205, 3243124), (6290, 3199298), (6445, 3122356), (10693, 1881940), (10804, 1862605), (12410, 1621562), (12580, 1599649), (12890, 1561178), (13505, 1490084), (21097, 953860), (21386, 940970), (21913, 918340), (24820, 810781), (25780, 780589), (27010, 745042), (42194, 476930), (42772, 470485), (43826, 459170), (45917, 438260), (47693, 421940), (53465, 376388), (54020, 372521), (84388, 238465), (87652, 229585), (91834, 219130), (94097, 213860), (95386, 210970), (105485, 190772), (106930, 188194), (109565, 183668)]