72393040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 179363520

約数和(自身を除く): 106970480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 380, 388, 485, 491, 760, 776, 970, 982, 1520, 1552, 1843, 1940, 1964, 2455, 3686, 3880, 3928, 4910, 7372, 7760, 7856, 9215, 9329, 9820, 14744, 18430, 18658, 19640, 29488, 36860, 37316, 39280, 46645, 47627, 73720, 74632, 93290, 95254, 147440, 149264, 186580, 190508, 238135, 373160, 381016, 476270, 746320, 762032, 904913, 952540, 1809826, 1905080, 3619652, 3810160, 4524565, 7239304, 9049130, 14478608, 18098260, 36196520, 72393040]

約数ペア:

[(1, 72393040), (2, 36196520), (4, 18098260), (5, 14478608), (8, 9049130), (10, 7239304), (16, 4524565), (19, 3810160), (20, 3619652), (38, 1905080), (40, 1809826), (76, 952540), (80, 904913), (95, 762032), (97, 746320), (152, 476270), (190, 381016), (194, 373160), (304, 238135), (380, 190508), (388, 186580), (485, 149264), (491, 147440), (760, 95254), (776, 93290), (970, 74632), (982, 73720), (1520, 47627), (1552, 46645), (1843, 39280), (1940, 37316), (1964, 36860), (2455, 29488), (3686, 19640), (3880, 18658), (3928, 18430), (4910, 14744), (7372, 9820), (7760, 9329), (7856, 9215)]