1977698520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2371}}^1$

素因数の和:2726

約数の個数: 192

約数和(自身を含む): 7371037440

約数和(自身を除く): 5393338920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 331, 360, 420, 504, 630, 662, 840, 993, 1260, 1324, 1655, 1986, 2317, 2371, 2520, 2648, 2979, 3310, 3972, 4634, 4742, 4965, 5958, 6620, 6951, 7113, 7944, 9268, 9484, 9930, 11585, 11855, 11916, 13240, 13902, 14226, 14895, 16597, 18536, 18968, 19860, 20853, 21339, 23170, 23710, 23832, 27804, 28452, 29790, 33194, 34755, 35565, 39720, 41706, 42678, 46340, 47420, 49791, 55608, 56904, 59580, 66388, 69510, 71130, 82985, 83412, 85356, 92680, 94840, 99582, 104265, 106695, 119160, 132776, 139020, 142260, 149373, 165970, 166824, 170712, 199164, 208530, 213390, 248955, 278040, 284520, 298746, 331940, 398328, 417060, 426780, 497910, 597492, 663880, 746865, 784801, 834120, 853560, 995820, 1194984, 1493730, 1569602, 1991640, 2354403, 2987460, 3139204, 3924005, 4708806, 5493607, 5974920, 6278408, 7063209, 7848010, 9417612, 10987214, 11772015, 14126418, 15696020, 16480821, 18835224, 21974428, 23544030, 27468035, 28252836, 31392040, 32961642, 35316045, 43948856, 47088060, 49442463, 54936070, 56505672, 65923284, 70632090, 82404105, 94176120, 98884926, 109872140, 131846568, 141264180, 164808210, 197769852, 219744280, 247212315, 282528360, 329616420, 395539704, 494424630, 659232840, 988849260, 1977698520]

約数ペア:

[(1, 1977698520), (2, 988849260), (3, 659232840), (4, 494424630), (5, 395539704), (6, 329616420), (7, 282528360), (8, 247212315), (9, 219744280), (10, 197769852), (12, 164808210), (14, 141264180), (15, 131846568), (18, 109872140), (20, 98884926), (21, 94176120), (24, 82404105), (28, 70632090), (30, 65923284), (35, 56505672), (36, 54936070), (40, 49442463), (42, 47088060), (45, 43948856), (56, 35316045), (60, 32961642), (63, 31392040), (70, 28252836), (72, 27468035), (84, 23544030), (90, 21974428), (105, 18835224), (120, 16480821), (126, 15696020), (140, 14126418), (168, 11772015), (180, 10987214), (210, 9417612), (252, 7848010), (280, 7063209), (315, 6278408), (331, 5974920), (360, 5493607), (420, 4708806), (504, 3924005), (630, 3139204), (662, 2987460), (840, 2354403), (993, 1991640), (1260, 1569602), (1324, 1493730), (1655, 1194984), (1986, 995820), (2317, 853560), (2371, 834120), (2520, 784801), (2648, 746865), (2979, 663880), (3310, 597492), (3972, 497910), (4634, 426780), (4742, 417060), (4965, 398328), (5958, 331940), (6620, 298746), (6951, 284520), (7113, 278040), (7944, 248955), (9268, 213390), (9484, 208530), (9930, 199164), (11585, 170712), (11855, 166824), (11916, 165970), (13240, 149373), (13902, 142260), (14226, 139020), (14895, 132776), (16597, 119160), (18536, 106695), (18968, 104265), (19860, 99582), (20853, 94840), (21339, 92680), (23170, 85356), (23710, 83412), (23832, 82985), (27804, 71130), (28452, 69510), (29790, 66388), (33194, 59580), (34755, 56904), (35565, 55608), (39720, 49791), (41706, 47420), (42678, 46340)]