71305780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 195063120

約数和(自身を除く): 123757340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 49, 52, 58, 65, 70, 91, 98, 116, 130, 140, 145, 182, 193, 196, 203, 245, 260, 290, 364, 377, 386, 406, 455, 490, 580, 637, 754, 772, 812, 910, 965, 980, 1015, 1274, 1351, 1421, 1508, 1820, 1885, 1930, 2030, 2509, 2548, 2639, 2702, 2842, 3185, 3770, 3860, 4060, 5018, 5278, 5404, 5597, 5684, 6370, 6755, 7105, 7540, 9457, 10036, 10556, 11194, 12545, 12740, 13195, 13510, 14210, 17563, 18473, 18914, 22388, 25090, 26390, 27020, 27985, 28420, 35126, 36946, 37828, 39179, 47285, 50180, 52780, 55970, 70252, 72761, 73892, 78358, 87815, 92365, 94570, 111940, 122941, 145522, 156716, 175630, 184730, 189140, 195895, 245882, 274253, 291044, 351260, 363805, 369460, 391790, 491764, 509327, 548506, 614705, 727610, 783580, 1018654, 1097012, 1229410, 1371265, 1455220, 2037308, 2458820, 2546635, 2742530, 3565289, 5093270, 5485060, 7130578, 10186540, 14261156, 17826445, 35652890, 71305780]

約数ペア:

[(1, 71305780), (2, 35652890), (4, 17826445), (5, 14261156), (7, 10186540), (10, 7130578), (13, 5485060), (14, 5093270), (20, 3565289), (26, 2742530), (28, 2546635), (29, 2458820), (35, 2037308), (49, 1455220), (52, 1371265), (58, 1229410), (65, 1097012), (70, 1018654), (91, 783580), (98, 727610), (116, 614705), (130, 548506), (140, 509327), (145, 491764), (182, 391790), (193, 369460), (196, 363805), (203, 351260), (245, 291044), (260, 274253), (290, 245882), (364, 195895), (377, 189140), (386, 184730), (406, 175630), (455, 156716), (490, 145522), (580, 122941), (637, 111940), (754, 94570), (772, 92365), (812, 87815), (910, 78358), (965, 73892), (980, 72761), (1015, 70252), (1274, 55970), (1351, 52780), (1421, 50180), (1508, 47285), (1820, 39179), (1885, 37828), (1930, 36946), (2030, 35126), (2509, 28420), (2548, 27985), (2639, 27020), (2702, 26390), (2842, 25090), (3185, 22388), (3770, 18914), (3860, 18473), (4060, 17563), (5018, 14210), (5278, 13510), (5404, 13195), (5597, 12740), (5684, 12545), (6370, 11194), (6755, 10556), (7105, 10036), (7540, 9457)]