42971920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1663}}^1$

素因数の和:1712

約数の個数: 80

約数和(自身を含む): 111421440

約数和(自身を除く): 68449520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 1663, 2584, 3230, 3326, 5168, 6460, 6652, 8315, 12920, 13304, 16630, 25840, 26608, 28271, 31597, 33260, 56542, 63194, 66520, 113084, 126388, 133040, 141355, 157985, 226168, 252776, 282710, 315970, 452336, 505552, 537149, 565420, 631940, 1074298, 1130840, 1263880, 2148596, 2261680, 2527760, 2685745, 4297192, 5371490, 8594384, 10742980, 21485960, 42971920]

約数ペア:

[(1, 42971920), (2, 21485960), (4, 10742980), (5, 8594384), (8, 5371490), (10, 4297192), (16, 2685745), (17, 2527760), (19, 2261680), (20, 2148596), (34, 1263880), (38, 1130840), (40, 1074298), (68, 631940), (76, 565420), (80, 537149), (85, 505552), (95, 452336), (136, 315970), (152, 282710), (170, 252776), (190, 226168), (272, 157985), (304, 141355), (323, 133040), (340, 126388), (380, 113084), (646, 66520), (680, 63194), (760, 56542), (1292, 33260), (1360, 31597), (1520, 28271), (1615, 26608), (1663, 25840), (2584, 16630), (3230, 13304), (3326, 12920), (5168, 8315), (6460, 6652)]