42805420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1463

約数の個数: 72

約数和(自身を含む): 108017280

約数和(自身を除く): 65211860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1409, 1519, 2170, 2818, 3038, 4340, 5636, 6076, 7045, 7595, 9863, 14090, 15190, 19726, 28180, 30380, 39452, 43679, 49315, 69041, 87358, 98630, 138082, 174716, 197260, 218395, 276164, 305753, 345205, 436790, 611506, 690410, 873580, 1223012, 1380820, 1528765, 2140271, 3057530, 4280542, 6115060, 8561084, 10701355, 21402710, 42805420]

約数ペア:

[(1, 42805420), (2, 21402710), (4, 10701355), (5, 8561084), (7, 6115060), (10, 4280542), (14, 3057530), (20, 2140271), (28, 1528765), (31, 1380820), (35, 1223012), (49, 873580), (62, 690410), (70, 611506), (98, 436790), (124, 345205), (140, 305753), (155, 276164), (196, 218395), (217, 197260), (245, 174716), (310, 138082), (434, 98630), (490, 87358), (620, 69041), (868, 49315), (980, 43679), (1085, 39452), (1409, 30380), (1519, 28180), (2170, 19726), (2818, 15190), (3038, 14090), (4340, 9863), (5636, 7595), (6076, 7045)]