21485280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2633}}^1$

素因数の和:2668

約数の個数: 96

約数和(自身を含む): 71686944

約数和(自身を除く): 50201664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2633, 2720, 4080, 5266, 7899, 8160, 10532, 13165, 15798, 21064, 26330, 31596, 39495, 42128, 44761, 52660, 63192, 78990, 84256, 89522, 105320, 126384, 134283, 157980, 179044, 210640, 223805, 252768, 268566, 315960, 358088, 421280, 447610, 537132, 631920, 671415, 716176, 895220, 1074264, 1263840, 1342830, 1432352, 1790440, 2148528, 2685660, 3580880, 4297056, 5371320, 7161760, 10742640, 21485280]

約数ペア:

[(1, 21485280), (2, 10742640), (3, 7161760), (4, 5371320), (5, 4297056), (6, 3580880), (8, 2685660), (10, 2148528), (12, 1790440), (15, 1432352), (16, 1342830), (17, 1263840), (20, 1074264), (24, 895220), (30, 716176), (32, 671415), (34, 631920), (40, 537132), (48, 447610), (51, 421280), (60, 358088), (68, 315960), (80, 268566), (85, 252768), (96, 223805), (102, 210640), (120, 179044), (136, 157980), (160, 134283), (170, 126384), (204, 105320), (240, 89522), (255, 84256), (272, 78990), (340, 63192), (408, 52660), (480, 44761), (510, 42128), (544, 39495), (680, 31596), (816, 26330), (1020, 21064), (1360, 15798), (1632, 13165), (2040, 10532), (2633, 8160), (2720, 7899), (4080, 5266)]