287752140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122971}}^1$

素因数の和:122999

約数の個数: 72

約数和(自身を含む): 939997968

約数和(自身を除く): 652245828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 122971, 245942, 368913, 491884, 614855, 737826, 1106739, 1229710, 1475652, 1598623, 1844565, 2213478, 2459420, 3197246, 3689130, 4426956, 4795869, 5533695, 6394492, 7378260, 7993115, 9591738, 11067390, 14387607, 15986230, 19183476, 22134780, 23979345, 28775214, 31972460, 47958690, 57550428, 71938035, 95917380, 143876070, 287752140]

約数ペア:

[(1, 287752140), (2, 143876070), (3, 95917380), (4, 71938035), (5, 57550428), (6, 47958690), (9, 31972460), (10, 28775214), (12, 23979345), (13, 22134780), (15, 19183476), (18, 15986230), (20, 14387607), (26, 11067390), (30, 9591738), (36, 7993115), (39, 7378260), (45, 6394492), (52, 5533695), (60, 4795869), (65, 4426956), (78, 3689130), (90, 3197246), (117, 2459420), (130, 2213478), (156, 1844565), (180, 1598623), (195, 1475652), (234, 1229710), (260, 1106739), (390, 737826), (468, 614855), (585, 491884), (780, 368913), (1170, 245942), (2340, 122971)]