1819265220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:1042

約数の個数: 144

約数和(自身を含む): 5641638912

約数和(自身を除く): 3822373692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 223, 244, 305, 366, 446, 549, 610, 669, 732, 743, 892, 915, 1098, 1115, 1220, 1338, 1486, 1830, 2007, 2196, 2229, 2230, 2676, 2745, 2972, 3345, 3660, 3715, 4014, 4458, 4460, 5490, 6687, 6690, 7430, 8028, 8916, 10035, 10980, 11145, 13374, 13380, 13603, 14860, 20070, 22290, 26748, 27206, 33435, 40140, 40809, 44580, 45323, 54412, 66870, 68015, 81618, 90646, 122427, 133740, 135969, 136030, 163236, 165689, 181292, 204045, 226615, 244854, 271938, 272060, 331378, 407907, 408090, 453230, 489708, 497067, 543876, 612135, 662756, 679845, 815814, 816180, 828445, 906460, 994134, 1224270, 1359690, 1491201, 1631628, 1656890, 1988268, 2039535, 2448540, 2485335, 2719380, 2982402, 3313780, 4079070, 4970670, 5964804, 7456005, 8158140, 9941340, 10107029, 14912010, 20214058, 29824020, 30321087, 40428116, 50535145, 60642174, 90963261, 101070290, 121284348, 151605435, 181926522, 202140580, 303210870, 363853044, 454816305, 606421740, 909632610, 1819265220]

約数ペア:

[(1, 1819265220), (2, 909632610), (3, 606421740), (4, 454816305), (5, 363853044), (6, 303210870), (9, 202140580), (10, 181926522), (12, 151605435), (15, 121284348), (18, 101070290), (20, 90963261), (30, 60642174), (36, 50535145), (45, 40428116), (60, 30321087), (61, 29824020), (90, 20214058), (122, 14912010), (180, 10107029), (183, 9941340), (223, 8158140), (244, 7456005), (305, 5964804), (366, 4970670), (446, 4079070), (549, 3313780), (610, 2982402), (669, 2719380), (732, 2485335), (743, 2448540), (892, 2039535), (915, 1988268), (1098, 1656890), (1115, 1631628), (1220, 1491201), (1338, 1359690), (1486, 1224270), (1830, 994134), (2007, 906460), (2196, 828445), (2229, 816180), (2230, 815814), (2676, 679845), (2745, 662756), (2972, 612135), (3345, 543876), (3660, 497067), (3715, 489708), (4014, 453230), (4458, 408090), (4460, 407907), (5490, 331378), (6687, 272060), (6690, 271938), (7430, 244854), (8028, 226615), (8916, 204045), (10035, 181292), (10980, 165689), (11145, 163236), (13374, 136030), (13380, 135969), (13603, 133740), (14860, 122427), (20070, 90646), (22290, 81618), (26748, 68015), (27206, 66870), (33435, 54412), (40140, 45323), (40809, 44580)]