20418497200

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{2383}}^1$

素因数の和:3123

約数の個数: 120

約数和(自身を含む): 50732435456

約数和(自身を除く): 30313938256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 691, 775, 1240, 1382, 1550, 2383, 2480, 2764, 3100, 3455, 4766, 5528, 6200, 6910, 9532, 11056, 11915, 12400, 13820, 17275, 19064, 21421, 23830, 27640, 34550, 38128, 42842, 47660, 55280, 59575, 69100, 73873, 85684, 95320, 107105, 119150, 138200, 147746, 171368, 190640, 214210, 238300, 276400, 295492, 342736, 369365, 428420, 476600, 535525, 590984, 738730, 856840, 953200, 1071050, 1181968, 1477460, 1646653, 1713680, 1846825, 2142100, 2954920, 3293306, 3693650, 4284200, 5909840, 6586612, 7387300, 8233265, 8568400, 13173224, 14774600, 16466530, 26346448, 29549200, 32933060, 41166325, 51046243, 65866120, 82332650, 102092486, 131732240, 164665300, 204184972, 255231215, 329330600, 408369944, 510462430, 658661200, 816739888, 1020924860, 1276156075, 2041849720, 2552312150, 4083699440, 5104624300, 10209248600, 20418497200]

約数ペア:

[(1, 20418497200), (2, 10209248600), (4, 5104624300), (5, 4083699440), (8, 2552312150), (10, 2041849720), (16, 1276156075), (20, 1020924860), (25, 816739888), (31, 658661200), (40, 510462430), (50, 408369944), (62, 329330600), (80, 255231215), (100, 204184972), (124, 164665300), (155, 131732240), (200, 102092486), (248, 82332650), (310, 65866120), (400, 51046243), (496, 41166325), (620, 32933060), (691, 29549200), (775, 26346448), (1240, 16466530), (1382, 14774600), (1550, 13173224), (2383, 8568400), (2480, 8233265), (2764, 7387300), (3100, 6586612), (3455, 5909840), (4766, 4284200), (5528, 3693650), (6200, 3293306), (6910, 2954920), (9532, 2142100), (11056, 1846825), (11915, 1713680), (12400, 1646653), (13820, 1477460), (17275, 1181968), (19064, 1071050), (21421, 953200), (23830, 856840), (27640, 738730), (34550, 590984), (38128, 535525), (42842, 476600), (47660, 428420), (55280, 369365), (59575, 342736), (69100, 295492), (73873, 276400), (85684, 238300), (95320, 214210), (107105, 190640), (119150, 171368), (138200, 147746)]