71900990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 170201088

約数和(自身を除く): 98300098

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 37, 46, 70, 71, 74, 85, 115, 119, 142, 161, 170, 185, 230, 238, 259, 322, 355, 370, 391, 497, 518, 595, 629, 710, 782, 805, 851, 994, 1190, 1207, 1258, 1295, 1610, 1633, 1702, 1955, 2414, 2485, 2590, 2627, 2737, 3145, 3266, 3910, 4255, 4403, 4970, 5254, 5474, 5957, 6035, 6290, 8165, 8449, 8510, 8806, 11431, 11914, 12070, 13135, 13685, 14467, 16330, 16898, 18389, 22015, 22862, 26270, 27370, 27761, 28934, 29785, 36778, 42245, 44030, 44659, 55522, 57155, 59570, 60421, 72335, 84490, 89318, 91945, 101269, 114310, 120842, 138805, 144670, 183890, 194327, 202538, 223295, 277610, 302105, 312613, 388654, 422947, 446590, 506345, 604210, 625226, 845894, 971635, 1012690, 1027157, 1563065, 1943270, 2054314, 2114735, 3126130, 4229470, 5135785, 7190099, 10271570, 14380198, 35950495, 71900990]

約数ペア:

[(1, 71900990), (2, 35950495), (5, 14380198), (7, 10271570), (10, 7190099), (14, 5135785), (17, 4229470), (23, 3126130), (34, 2114735), (35, 2054314), (37, 1943270), (46, 1563065), (70, 1027157), (71, 1012690), (74, 971635), (85, 845894), (115, 625226), (119, 604210), (142, 506345), (161, 446590), (170, 422947), (185, 388654), (230, 312613), (238, 302105), (259, 277610), (322, 223295), (355, 202538), (370, 194327), (391, 183890), (497, 144670), (518, 138805), (595, 120842), (629, 114310), (710, 101269), (782, 91945), (805, 89318), (851, 84490), (994, 72335), (1190, 60421), (1207, 59570), (1258, 57155), (1295, 55522), (1610, 44659), (1633, 44030), (1702, 42245), (1955, 36778), (2414, 29785), (2485, 28934), (2590, 27761), (2627, 27370), (2737, 26270), (3145, 22862), (3266, 22015), (3910, 18389), (4255, 16898), (4403, 16330), (4970, 14467), (5254, 13685), (5474, 13135), (5957, 12070), (6035, 11914), (6290, 11431), (8165, 8806), (8449, 8510)]