815892680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1\times {\mathrm{1327}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 1936224000

約数和(自身を除く): 1120331320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 809, 1327, 1618, 2654, 3236, 4045, 5308, 6472, 6635, 8090, 10616, 13270, 15371, 16180, 25213, 26540, 30742, 32360, 50426, 53080, 61484, 76855, 100852, 122968, 126065, 153710, 201704, 252130, 307420, 504260, 614840, 1008520, 1073543, 2147086, 4294172, 5367715, 8588344, 10735430, 20397317, 21470860, 40794634, 42941720, 81589268, 101986585, 163178536, 203973170, 407946340, 815892680]

約数ペア:

[(1, 815892680), (2, 407946340), (4, 203973170), (5, 163178536), (8, 101986585), (10, 81589268), (19, 42941720), (20, 40794634), (38, 21470860), (40, 20397317), (76, 10735430), (95, 8588344), (152, 5367715), (190, 4294172), (380, 2147086), (760, 1073543), (809, 1008520), (1327, 614840), (1618, 504260), (2654, 307420), (3236, 252130), (4045, 201704), (5308, 153710), (6472, 126065), (6635, 122968), (8090, 100852), (10616, 76855), (13270, 61484), (15371, 53080), (16180, 50426), (25213, 32360), (26540, 30742)]