31000970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 79349760

約数和(自身を除く): 48348790

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 19, 22, 26, 35, 38, 55, 65, 70, 77, 91, 95, 110, 130, 133, 143, 154, 163, 182, 190, 209, 247, 266, 286, 326, 385, 418, 455, 494, 665, 715, 770, 815, 910, 1001, 1045, 1141, 1235, 1330, 1430, 1463, 1630, 1729, 1793, 2002, 2090, 2119, 2282, 2470, 2717, 2926, 3097, 3458, 3586, 4238, 5005, 5434, 5705, 6194, 7315, 8645, 8965, 10010, 10595, 11410, 12551, 13585, 14630, 14833, 15485, 17290, 17930, 19019, 21190, 21679, 23309, 25102, 27170, 29666, 30970, 34067, 38038, 40261, 43358, 46618, 62755, 68134, 74165, 80522, 95095, 108395, 116545, 125510, 148330, 163163, 170335, 190190, 201305, 216790, 233090, 238469, 281827, 326326, 340670, 402610, 442871, 476938, 563654, 815815, 885742, 1192345, 1409135, 1631630, 2214355, 2384690, 2818270, 3100097, 4428710, 6200194, 15500485, 31000970]

約数ペア:

[(1, 31000970), (2, 15500485), (5, 6200194), (7, 4428710), (10, 3100097), (11, 2818270), (13, 2384690), (14, 2214355), (19, 1631630), (22, 1409135), (26, 1192345), (35, 885742), (38, 815815), (55, 563654), (65, 476938), (70, 442871), (77, 402610), (91, 340670), (95, 326326), (110, 281827), (130, 238469), (133, 233090), (143, 216790), (154, 201305), (163, 190190), (182, 170335), (190, 163163), (209, 148330), (247, 125510), (266, 116545), (286, 108395), (326, 95095), (385, 80522), (418, 74165), (455, 68134), (494, 62755), (665, 46618), (715, 43358), (770, 40261), (815, 38038), (910, 34067), (1001, 30970), (1045, 29666), (1141, 27170), (1235, 25102), (1330, 23309), (1430, 21679), (1463, 21190), (1630, 19019), (1729, 17930), (1793, 17290), (2002, 15485), (2090, 14833), (2119, 14630), (2282, 13585), (2470, 12551), (2717, 11410), (2926, 10595), (3097, 10010), (3458, 8965), (3586, 8645), (4238, 7315), (5005, 6194), (5434, 5705)]