77985460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 209599488

約数和(自身を除く): 131614028

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 49, 62, 68, 70, 85, 98, 119, 124, 140, 151, 155, 170, 196, 217, 238, 245, 302, 310, 340, 434, 476, 490, 527, 595, 604, 620, 755, 833, 868, 980, 1054, 1057, 1085, 1190, 1510, 1519, 1666, 2108, 2114, 2170, 2380, 2567, 2635, 3020, 3038, 3332, 3689, 4165, 4228, 4340, 4681, 5134, 5270, 5285, 6076, 7378, 7399, 7595, 8330, 9362, 10268, 10540, 10570, 12835, 14756, 14798, 15190, 16660, 17969, 18445, 18724, 21140, 23405, 25670, 25823, 29596, 30380, 32767, 35938, 36890, 36995, 46810, 51340, 51646, 65534, 71876, 73780, 73990, 79577, 89845, 93620, 103292, 125783, 129115, 131068, 147980, 159154, 163835, 179690, 229369, 251566, 258230, 318308, 327670, 359380, 397885, 458738, 503132, 516460, 557039, 628915, 655340, 795770, 917476, 1114078, 1146845, 1257830, 1591540, 2228156, 2293690, 2515660, 2785195, 3899273, 4587380, 5570390, 7798546, 11140780, 15597092, 19496365, 38992730, 77985460]

約数ペア:

[(1, 77985460), (2, 38992730), (4, 19496365), (5, 15597092), (7, 11140780), (10, 7798546), (14, 5570390), (17, 4587380), (20, 3899273), (28, 2785195), (31, 2515660), (34, 2293690), (35, 2228156), (49, 1591540), (62, 1257830), (68, 1146845), (70, 1114078), (85, 917476), (98, 795770), (119, 655340), (124, 628915), (140, 557039), (151, 516460), (155, 503132), (170, 458738), (196, 397885), (217, 359380), (238, 327670), (245, 318308), (302, 258230), (310, 251566), (340, 229369), (434, 179690), (476, 163835), (490, 159154), (527, 147980), (595, 131068), (604, 129115), (620, 125783), (755, 103292), (833, 93620), (868, 89845), (980, 79577), (1054, 73990), (1057, 73780), (1085, 71876), (1190, 65534), (1510, 51646), (1519, 51340), (1666, 46810), (2108, 36995), (2114, 36890), (2170, 35938), (2380, 32767), (2567, 30380), (2635, 29596), (3020, 25823), (3038, 25670), (3332, 23405), (3689, 21140), (4165, 18724), (4228, 18445), (4340, 17969), (4681, 16660), (5134, 15190), (5270, 14798), (5285, 14756), (6076, 12835), (7378, 10570), (7399, 10540), (7595, 10268), (8330, 9362)]