20347840810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 42692832000

約数和(自身を除く): 22344991190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 149, 181, 190, 209, 298, 361, 362, 418, 722, 745, 905, 1045, 1490, 1639, 1805, 1810, 1991, 2090, 2831, 3278, 3439, 3610, 3971, 3982, 5662, 6859, 6878, 7942, 8195, 9955, 13718, 14155, 16390, 17195, 19855, 19910, 26969, 28310, 31141, 34295, 34390, 37829, 39710, 53789, 53938, 62282, 65341, 68590, 75449, 75658, 107578, 130682, 134845, 150898, 155705, 189145, 268945, 269690, 296659, 311410, 326705, 377245, 378290, 512411, 537890, 591679, 593318, 653410, 718751, 754490, 1021991, 1024822, 1183358, 1241479, 1437502, 1483295, 2043982, 2482958, 2562055, 2958395, 2966590, 3593755, 5109955, 5124110, 5636521, 5916790, 6207395, 7187510, 9735809, 10219910, 11241901, 11273042, 12414790, 13656269, 19471618, 22483802, 27312538, 28182605, 48679045, 56209505, 56365210, 68281345, 97358090, 107093899, 112419010, 136562690, 184980371, 214187798, 369960742, 535469495, 924901855, 1070938990, 1849803710, 2034784081, 4069568162, 10173920405, 20347840810]

約数ペア:

[(1, 20347840810), (2, 10173920405), (5, 4069568162), (10, 2034784081), (11, 1849803710), (19, 1070938990), (22, 924901855), (38, 535469495), (55, 369960742), (95, 214187798), (110, 184980371), (149, 136562690), (181, 112419010), (190, 107093899), (209, 97358090), (298, 68281345), (361, 56365210), (362, 56209505), (418, 48679045), (722, 28182605), (745, 27312538), (905, 22483802), (1045, 19471618), (1490, 13656269), (1639, 12414790), (1805, 11273042), (1810, 11241901), (1991, 10219910), (2090, 9735809), (2831, 7187510), (3278, 6207395), (3439, 5916790), (3610, 5636521), (3971, 5124110), (3982, 5109955), (5662, 3593755), (6859, 2966590), (6878, 2958395), (7942, 2562055), (8195, 2482958), (9955, 2043982), (13718, 1483295), (14155, 1437502), (16390, 1241479), (17195, 1183358), (19855, 1024822), (19910, 1021991), (26969, 754490), (28310, 718751), (31141, 653410), (34295, 593318), (34390, 591679), (37829, 537890), (39710, 512411), (53789, 378290), (53938, 377245), (62282, 326705), (65341, 311410), (68590, 296659), (75449, 269690), (75658, 268945), (107578, 189145), (130682, 155705), (134845, 150898)]