278813255920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21313}}^1\times {\mathrm{9619}}^1$

素因数の和:30962

約数の個数: 80

約数和(自身を含む): 686476196640

約数和(自身を除く): 407662940720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9619, 19238, 21313, 38476, 42626, 48095, 76952, 85252, 96190, 106565, 153904, 163523, 170504, 192380, 213130, 327046, 341008, 362321, 384760, 426260, 654092, 724642, 769520, 817615, 852520, 1308184, 1449284, 1635230, 1705040, 1811605, 2616368, 2898568, 3270460, 3623210, 5797136, 6540920, 7246420, 13081840, 14492840, 28985680, 205009747, 410019494, 820038988, 1025048735, 1640077976, 2050097470, 3280155952, 3485165699, 4100194940, 6970331398, 8200389880, 13940662796, 16400779760, 17425828495, 27881325592, 34851656990, 55762651184, 69703313980, 139406627960, 278813255920]

約数ペア:

[(1, 278813255920), (2, 139406627960), (4, 69703313980), (5, 55762651184), (8, 34851656990), (10, 27881325592), (16, 17425828495), (17, 16400779760), (20, 13940662796), (34, 8200389880), (40, 6970331398), (68, 4100194940), (80, 3485165699), (85, 3280155952), (136, 2050097470), (170, 1640077976), (272, 1025048735), (340, 820038988), (680, 410019494), (1360, 205009747), (9619, 28985680), (19238, 14492840), (21313, 13081840), (38476, 7246420), (42626, 6540920), (48095, 5797136), (76952, 3623210), (85252, 3270460), (96190, 2898568), (106565, 2616368), (153904, 1811605), (163523, 1705040), (170504, 1635230), (192380, 1449284), (213130, 1308184), (327046, 852520), (341008, 817615), (362321, 769520), (384760, 724642), (426260, 654092)]