655121740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{27689}}^1$

素因数の和:27731

約数の個数: 72

約数和(自身を含む): 1702602720

約数和(自身を除く): 1047480980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2366, 3380, 4732, 5915, 11830, 23660, 27689, 55378, 110756, 138445, 193823, 276890, 359957, 387646, 553780, 719914, 775292, 969115, 1439828, 1799785, 1938230, 2519699, 3599570, 3876460, 4679441, 5039398, 7199140, 9358882, 10078796, 12598495, 18717764, 23397205, 25196990, 32756087, 46794410, 50393980, 65512174, 93588820, 131024348, 163780435, 327560870, 655121740]

約数ペア:

[(1, 655121740), (2, 327560870), (4, 163780435), (5, 131024348), (7, 93588820), (10, 65512174), (13, 50393980), (14, 46794410), (20, 32756087), (26, 25196990), (28, 23397205), (35, 18717764), (52, 12598495), (65, 10078796), (70, 9358882), (91, 7199140), (130, 5039398), (140, 4679441), (169, 3876460), (182, 3599570), (260, 2519699), (338, 1938230), (364, 1799785), (455, 1439828), (676, 969115), (845, 775292), (910, 719914), (1183, 553780), (1690, 387646), (1820, 359957), (2366, 276890), (3380, 193823), (4732, 138445), (5915, 110756), (11830, 55378), (23660, 27689)]