20890451120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109397}}^1$

素因数の和:109459

約数の個数: 160

約数和(自身を含む): 62509142016

約数和(自身を除く): 41618690896

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 176, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 496, 560, 616, 620, 682, 770, 868, 880, 1085, 1232, 1240, 1364, 1540, 1705, 1736, 2170, 2387, 2480, 2728, 3080, 3410, 3472, 4340, 4774, 5456, 6160, 6820, 8680, 9548, 11935, 13640, 17360, 19096, 23870, 27280, 38192, 47740, 95480, 109397, 190960, 218794, 437588, 546985, 765779, 875176, 1093970, 1203367, 1531558, 1750352, 2187940, 2406734, 3063116, 3391307, 3828895, 4375880, 4813468, 6016835, 6126232, 6782614, 7657790, 8423569, 8751760, 9626936, 12033670, 12252464, 13565228, 15315580, 16847138, 16956535, 19253872, 23739149, 24067340, 27130456, 30631160, 33694276, 33913070, 37304377, 42117845, 47478298, 48134680, 54260912, 61262320, 67388552, 67826140, 74608754, 84235690, 94956596, 96269360, 118695745, 134777104, 135652280, 149217508, 168471380, 186521885, 189913192, 237391490, 261130639, 271304560, 298435016, 336942760, 373043770, 379826384, 474782980, 522261278, 596870032, 673885520, 746087540, 949565960, 1044522556, 1305653195, 1492175080, 1899131920, 2089045112, 2611306390, 2984350160, 4178090224, 5222612780, 10445225560, 20890451120]

約数ペア:

[(1, 20890451120), (2, 10445225560), (4, 5222612780), (5, 4178090224), (7, 2984350160), (8, 2611306390), (10, 2089045112), (11, 1899131920), (14, 1492175080), (16, 1305653195), (20, 1044522556), (22, 949565960), (28, 746087540), (31, 673885520), (35, 596870032), (40, 522261278), (44, 474782980), (55, 379826384), (56, 373043770), (62, 336942760), (70, 298435016), (77, 271304560), (80, 261130639), (88, 237391490), (110, 189913192), (112, 186521885), (124, 168471380), (140, 149217508), (154, 135652280), (155, 134777104), (176, 118695745), (217, 96269360), (220, 94956596), (248, 84235690), (280, 74608754), (308, 67826140), (310, 67388552), (341, 61262320), (385, 54260912), (434, 48134680), (440, 47478298), (496, 42117845), (560, 37304377), (616, 33913070), (620, 33694276), (682, 30631160), (770, 27130456), (868, 24067340), (880, 23739149), (1085, 19253872), (1232, 16956535), (1240, 16847138), (1364, 15315580), (1540, 13565228), (1705, 12252464), (1736, 12033670), (2170, 9626936), (2387, 8751760), (2480, 8423569), (2728, 7657790), (3080, 6782614), (3410, 6126232), (3472, 6016835), (4340, 4813468), (4774, 4375880), (5456, 3828895), (6160, 3391307), (6820, 3063116), (8680, 2406734), (9548, 2187940), (11935, 1750352), (13640, 1531558), (17360, 1203367), (19096, 1093970), (23870, 875176), (27280, 765779), (38192, 546985), (47740, 437588), (95480, 218794), (109397, 190960)]