664721568

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{329723}}^1$

素因数の和:329746

約数の個数: 72

約数和(自身を含む): 2160351648

約数和(自身を除く): 1495630080

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 329723, 659446, 989169, 1318892, 1978338, 2308061, 2637784, 2967507, 3956676, 4616122, 5275568, 5935014, 6924183, 7913352, 9232244, 10551136, 11870028, 13848366, 15826704, 18464488, 20772549, 23740056, 27696732, 31653408, 36928976, 41545098, 47480112, 55393464, 73857952, 83090196, 94960224, 110786928, 166180392, 221573856, 332360784, 664721568]

約数ペア:

[(1, 664721568), (2, 332360784), (3, 221573856), (4, 166180392), (6, 110786928), (7, 94960224), (8, 83090196), (9, 73857952), (12, 55393464), (14, 47480112), (16, 41545098), (18, 36928976), (21, 31653408), (24, 27696732), (28, 23740056), (32, 20772549), (36, 18464488), (42, 15826704), (48, 13848366), (56, 11870028), (63, 10551136), (72, 9232244), (84, 7913352), (96, 6924183), (112, 5935014), (126, 5275568), (144, 4616122), (168, 3956676), (224, 2967507), (252, 2637784), (288, 2308061), (336, 1978338), (504, 1318892), (672, 989169), (1008, 659446), (2016, 329723)]