20989851888

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{70157}}^1$

素因数の和:70462

約数の個数: 80

約数和(自身を含む): 56790936576

約数和(自身を除く): 35801084688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 138, 184, 271, 276, 368, 542, 552, 813, 1084, 1104, 1626, 2168, 3252, 4336, 6233, 6504, 12466, 13008, 18699, 24932, 37398, 49864, 70157, 74796, 99728, 140314, 149592, 210471, 280628, 299184, 420942, 561256, 841884, 1122512, 1613611, 1683768, 3227222, 3367536, 4840833, 6454444, 9681666, 12908888, 19012547, 19363332, 25817776, 38025094, 38726664, 57037641, 76050188, 77453328, 114075282, 152100376, 228150564, 304200752, 437288581, 456301128, 874577162, 912602256, 1311865743, 1749154324, 2623731486, 3498308648, 5247462972, 6996617296, 10494925944, 20989851888]

約数ペア:

[(1, 20989851888), (2, 10494925944), (3, 6996617296), (4, 5247462972), (6, 3498308648), (8, 2623731486), (12, 1749154324), (16, 1311865743), (23, 912602256), (24, 874577162), (46, 456301128), (48, 437288581), (69, 304200752), (92, 228150564), (138, 152100376), (184, 114075282), (271, 77453328), (276, 76050188), (368, 57037641), (542, 38726664), (552, 38025094), (813, 25817776), (1084, 19363332), (1104, 19012547), (1626, 12908888), (2168, 9681666), (3252, 6454444), (4336, 4840833), (6233, 3367536), (6504, 3227222), (12466, 1683768), (13008, 1613611), (18699, 1122512), (24932, 841884), (37398, 561256), (49864, 420942), (70157, 299184), (74796, 280628), (99728, 210471), (140314, 149592)]