20156989136

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{19853}}^1$

素因数の和:20004

約数の個数: 80

約数和(自身を含む): 42541562880

約数和(自身を除く): 22384573744

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 89, 92, 124, 178, 184, 248, 356, 368, 496, 712, 713, 1424, 1426, 2047, 2759, 2852, 4094, 5518, 5704, 8188, 11036, 11408, 16376, 19853, 22072, 32752, 39706, 44144, 63457, 79412, 126914, 158824, 253828, 317648, 456619, 507656, 615443, 913238, 1015312, 1230886, 1766917, 1826476, 2461772, 3533834, 3652952, 4923544, 7067668, 7305904, 9847088, 14135336, 14155189, 28270672, 28310378, 40639091, 54774427, 56620756, 81278182, 109548854, 113241512, 162556364, 219097708, 226483024, 325112728, 438195416, 650225456, 876390832, 1259811821, 2519623642, 5039247284, 10078494568, 20156989136]

約数ペア:

[(1, 20156989136), (2, 10078494568), (4, 5039247284), (8, 2519623642), (16, 1259811821), (23, 876390832), (31, 650225456), (46, 438195416), (62, 325112728), (89, 226483024), (92, 219097708), (124, 162556364), (178, 113241512), (184, 109548854), (248, 81278182), (356, 56620756), (368, 54774427), (496, 40639091), (712, 28310378), (713, 28270672), (1424, 14155189), (1426, 14135336), (2047, 9847088), (2759, 7305904), (2852, 7067668), (4094, 4923544), (5518, 3652952), (5704, 3533834), (8188, 2461772), (11036, 1826476), (11408, 1766917), (16376, 1230886), (19853, 1015312), (22072, 913238), (32752, 615443), (39706, 507656), (44144, 456619), (63457, 317648), (79412, 253828), (126914, 158824)]