398105820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{105319}}^1$

素因数の和:105344

約数の個数: 96

約数和(自身を含む): 1415500800

約数和(自身を除く): 1017394980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 105319, 210638, 315957, 421276, 526595, 631914, 737233, 947871, 1053190, 1263828, 1474466, 1579785, 1895742, 2106380, 2211699, 2843613, 2948932, 3159570, 3686165, 3791484, 4423398, 4739355, 5687226, 6319140, 6635097, 7372330, 8846796, 9478710, 11058495, 11374452, 13270194, 14218065, 14744660, 18957420, 19905291, 22116990, 26540388, 28436130, 33175485, 39810582, 44233980, 56872260, 66350970, 79621164, 99526455, 132701940, 199052910, 398105820]

約数ペア:

[(1, 398105820), (2, 199052910), (3, 132701940), (4, 99526455), (5, 79621164), (6, 66350970), (7, 56872260), (9, 44233980), (10, 39810582), (12, 33175485), (14, 28436130), (15, 26540388), (18, 22116990), (20, 19905291), (21, 18957420), (27, 14744660), (28, 14218065), (30, 13270194), (35, 11374452), (36, 11058495), (42, 9478710), (45, 8846796), (54, 7372330), (60, 6635097), (63, 6319140), (70, 5687226), (84, 4739355), (90, 4423398), (105, 3791484), (108, 3686165), (126, 3159570), (135, 2948932), (140, 2843613), (180, 2211699), (189, 2106380), (210, 1895742), (252, 1579785), (270, 1474466), (315, 1263828), (378, 1053190), (420, 947871), (540, 737233), (630, 631914), (756, 526595), (945, 421276), (1260, 315957), (1890, 210638), (3780, 105319)]