28394760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:511

約数の個数: 128

約数和(自身を含む): 93312000

約数和(自身を除く): 64917240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 449, 465, 510, 527, 620, 680, 744, 898, 930, 1020, 1054, 1240, 1347, 1581, 1796, 1860, 2040, 2108, 2245, 2635, 2694, 3162, 3592, 3720, 4216, 4490, 5270, 5388, 6324, 6735, 7633, 7905, 8980, 10540, 10776, 12648, 13470, 13919, 15266, 15810, 17960, 21080, 22899, 26940, 27838, 30532, 31620, 38165, 41757, 45798, 53880, 55676, 61064, 63240, 69595, 76330, 83514, 91596, 111352, 114495, 139190, 152660, 167028, 183192, 208785, 228990, 236623, 278380, 305320, 334056, 417570, 457980, 473246, 556760, 709869, 835140, 915960, 946492, 1183115, 1419738, 1670280, 1892984, 2366230, 2839476, 3549345, 4732460, 5678952, 7098690, 9464920, 14197380, 28394760]

約数ペア:

[(1, 28394760), (2, 14197380), (3, 9464920), (4, 7098690), (5, 5678952), (6, 4732460), (8, 3549345), (10, 2839476), (12, 2366230), (15, 1892984), (17, 1670280), (20, 1419738), (24, 1183115), (30, 946492), (31, 915960), (34, 835140), (40, 709869), (51, 556760), (60, 473246), (62, 457980), (68, 417570), (85, 334056), (93, 305320), (102, 278380), (120, 236623), (124, 228990), (136, 208785), (155, 183192), (170, 167028), (186, 152660), (204, 139190), (248, 114495), (255, 111352), (310, 91596), (340, 83514), (372, 76330), (408, 69595), (449, 63240), (465, 61064), (510, 55676), (527, 53880), (620, 45798), (680, 41757), (744, 38165), (898, 31620), (930, 30532), (1020, 27838), (1054, 26940), (1240, 22899), (1347, 21080), (1581, 17960), (1796, 15810), (1860, 15266), (2040, 13919), (2108, 13470), (2245, 12648), (2635, 10776), (2694, 10540), (3162, 8980), (3592, 7905), (3720, 7633), (4216, 6735), (4490, 6324), (5270, 5388)]