15881580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:656

約数の個数: 144

約数和(自身を含む): 56687904

約数和(自身を除く): 40806324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 617, 660, 715, 780, 858, 990, 1170, 1234, 1287, 1430, 1716, 1851, 1980, 2145, 2340, 2468, 2574, 2860, 3085, 3702, 4290, 5148, 5553, 6170, 6435, 6787, 7404, 8021, 8580, 9255, 11106, 12340, 12870, 13574, 16042, 18510, 20361, 22212, 24063, 25740, 27148, 27765, 32084, 33935, 37020, 40105, 40722, 48126, 55530, 61083, 67870, 72189, 80210, 81444, 88231, 96252, 101805, 111060, 120315, 122166, 135740, 144378, 160420, 176462, 203610, 240630, 244332, 264693, 288756, 305415, 352924, 360945, 407220, 441155, 481260, 529386, 610830, 721890, 794079, 882310, 1058772, 1221660, 1323465, 1443780, 1588158, 1764620, 2646930, 3176316, 3970395, 5293860, 7940790, 15881580]

約数ペア:

[(1, 15881580), (2, 7940790), (3, 5293860), (4, 3970395), (5, 3176316), (6, 2646930), (9, 1764620), (10, 1588158), (11, 1443780), (12, 1323465), (13, 1221660), (15, 1058772), (18, 882310), (20, 794079), (22, 721890), (26, 610830), (30, 529386), (33, 481260), (36, 441155), (39, 407220), (44, 360945), (45, 352924), (52, 305415), (55, 288756), (60, 264693), (65, 244332), (66, 240630), (78, 203610), (90, 176462), (99, 160420), (110, 144378), (117, 135740), (130, 122166), (132, 120315), (143, 111060), (156, 101805), (165, 96252), (180, 88231), (195, 81444), (198, 80210), (220, 72189), (234, 67870), (260, 61083), (286, 55530), (330, 48126), (390, 40722), (396, 40105), (429, 37020), (468, 33935), (495, 32084), (572, 27765), (585, 27148), (617, 25740), (660, 24063), (715, 22212), (780, 20361), (858, 18510), (990, 16042), (1170, 13574), (1234, 12870), (1287, 12340), (1430, 11106), (1716, 9255), (1851, 8580), (1980, 8021), (2145, 7404), (2340, 6787), (2468, 6435), (2574, 6170), (2860, 5553), (3085, 5148), (3702, 4290)]