138431720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{26021}}^1$

素因数の和:26058

約数の個数: 64

約数和(自身を含む): 374716800

約数和(自身を除く): 236285080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 26021, 52042, 104084, 130105, 182147, 208168, 260210, 364294, 494399, 520420, 728588, 910735, 988798, 1040840, 1457176, 1821470, 1977596, 2471995, 3460793, 3642940, 3955192, 4943990, 6921586, 7285880, 9887980, 13843172, 17303965, 19775960, 27686344, 34607930, 69215860, 138431720]

約数ペア:

[(1, 138431720), (2, 69215860), (4, 34607930), (5, 27686344), (7, 19775960), (8, 17303965), (10, 13843172), (14, 9887980), (19, 7285880), (20, 6921586), (28, 4943990), (35, 3955192), (38, 3642940), (40, 3460793), (56, 2471995), (70, 1977596), (76, 1821470), (95, 1457176), (133, 1040840), (140, 988798), (152, 910735), (190, 728588), (266, 520420), (280, 494399), (380, 364294), (532, 260210), (665, 208168), (760, 182147), (1064, 130105), (1330, 104084), (2660, 52042), (5320, 26021)]