90255550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 144

約数和(自身を含む): 226713168

約数和(自身を除く): 136457618

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 25, 34, 35, 49, 50, 55, 70, 77, 85, 98, 110, 119, 154, 170, 175, 187, 197, 238, 245, 275, 350, 374, 385, 394, 425, 490, 539, 550, 595, 770, 833, 850, 935, 985, 1078, 1190, 1225, 1309, 1379, 1666, 1870, 1925, 1970, 2167, 2450, 2618, 2695, 2758, 2975, 3349, 3850, 4165, 4334, 4675, 4925, 5390, 5950, 6545, 6698, 6895, 8330, 9163, 9350, 9653, 9850, 10835, 13090, 13475, 13790, 15169, 16745, 18326, 19306, 20825, 21670, 23443, 26950, 30338, 32725, 33490, 34475, 36839, 41650, 45815, 46886, 48265, 54175, 65450, 68950, 73678, 75845, 83725, 91630, 96530, 106183, 108350, 117215, 151690, 164101, 167450, 184195, 212366, 229075, 234430, 241325, 257873, 328202, 368390, 379225, 458150, 482650, 515746, 530915, 586075, 758450, 820505, 920975, 1061830, 1172150, 1289365, 1641010, 1805111, 1841950, 2578730, 2654575, 3610222, 4102525, 5309150, 6446825, 8205050, 9025555, 12893650, 18051110, 45127775, 90255550]

約数ペア:

[(1, 90255550), (2, 45127775), (5, 18051110), (7, 12893650), (10, 9025555), (11, 8205050), (14, 6446825), (17, 5309150), (22, 4102525), (25, 3610222), (34, 2654575), (35, 2578730), (49, 1841950), (50, 1805111), (55, 1641010), (70, 1289365), (77, 1172150), (85, 1061830), (98, 920975), (110, 820505), (119, 758450), (154, 586075), (170, 530915), (175, 515746), (187, 482650), (197, 458150), (238, 379225), (245, 368390), (275, 328202), (350, 257873), (374, 241325), (385, 234430), (394, 229075), (425, 212366), (490, 184195), (539, 167450), (550, 164101), (595, 151690), (770, 117215), (833, 108350), (850, 106183), (935, 96530), (985, 91630), (1078, 83725), (1190, 75845), (1225, 73678), (1309, 68950), (1379, 65450), (1666, 54175), (1870, 48265), (1925, 46886), (1970, 45815), (2167, 41650), (2450, 36839), (2618, 34475), (2695, 33490), (2758, 32725), (2975, 30338), (3349, 26950), (3850, 23443), (4165, 21670), (4334, 20825), (4675, 19306), (4925, 18326), (5390, 16745), (5950, 15169), (6545, 13790), (6698, 13475), (6895, 13090), (8330, 10835), (9163, 9850), (9350, 9653)]