28903160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 79349760

約数和(自身を除く): 50446600

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 163, 220, 248, 260, 286, 310, 326, 341, 403, 440, 520, 572, 620, 652, 682, 715, 806, 815, 1144, 1240, 1304, 1364, 1430, 1612, 1630, 1705, 1793, 2015, 2119, 2728, 2860, 3224, 3260, 3410, 3586, 4030, 4238, 4433, 5053, 5720, 6520, 6820, 7172, 8060, 8476, 8866, 8965, 10106, 10595, 13640, 14344, 16120, 16952, 17732, 17930, 20212, 21190, 22165, 23309, 25265, 35464, 35860, 40424, 42380, 44330, 46618, 50530, 55583, 65689, 71720, 84760, 88660, 93236, 101060, 111166, 116545, 131378, 177320, 186472, 202120, 222332, 233090, 262756, 277915, 328445, 444664, 466180, 525512, 555830, 656890, 722579, 932360, 1111660, 1313780, 1445158, 2223320, 2627560, 2890316, 3612895, 5780632, 7225790, 14451580, 28903160]

約数ペア:

[(1, 28903160), (2, 14451580), (4, 7225790), (5, 5780632), (8, 3612895), (10, 2890316), (11, 2627560), (13, 2223320), (20, 1445158), (22, 1313780), (26, 1111660), (31, 932360), (40, 722579), (44, 656890), (52, 555830), (55, 525512), (62, 466180), (65, 444664), (88, 328445), (104, 277915), (110, 262756), (124, 233090), (130, 222332), (143, 202120), (155, 186472), (163, 177320), (220, 131378), (248, 116545), (260, 111166), (286, 101060), (310, 93236), (326, 88660), (341, 84760), (403, 71720), (440, 65689), (520, 55583), (572, 50530), (620, 46618), (652, 44330), (682, 42380), (715, 40424), (806, 35860), (815, 35464), (1144, 25265), (1240, 23309), (1304, 22165), (1364, 21190), (1430, 20212), (1612, 17930), (1630, 17732), (1705, 16952), (1793, 16120), (2015, 14344), (2119, 13640), (2728, 10595), (2860, 10106), (3224, 8965), (3260, 8866), (3410, 8476), (3586, 8060), (4030, 7172), (4238, 6820), (4433, 6520), (5053, 5720)]