28906680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 96422400

約数和(自身を除く): 67515720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 359, 366, 440, 488, 610, 660, 671, 718, 732, 915, 1077, 1220, 1320, 1342, 1436, 1464, 1795, 1830, 2013, 2154, 2440, 2684, 2872, 3355, 3590, 3660, 3949, 4026, 4308, 5368, 5385, 6710, 7180, 7320, 7898, 8052, 8616, 10065, 10770, 11847, 13420, 14360, 15796, 16104, 19745, 20130, 21540, 21899, 23694, 26840, 31592, 39490, 40260, 43080, 43798, 47388, 59235, 65697, 78980, 80520, 87596, 94776, 109495, 118470, 131394, 157960, 175192, 218990, 236940, 240889, 262788, 328485, 437980, 473880, 481778, 525576, 656970, 722667, 875960, 963556, 1204445, 1313940, 1445334, 1927112, 2408890, 2627880, 2890668, 3613335, 4817780, 5781336, 7226670, 9635560, 14453340, 28906680]

約数ペア:

[(1, 28906680), (2, 14453340), (3, 9635560), (4, 7226670), (5, 5781336), (6, 4817780), (8, 3613335), (10, 2890668), (11, 2627880), (12, 2408890), (15, 1927112), (20, 1445334), (22, 1313940), (24, 1204445), (30, 963556), (33, 875960), (40, 722667), (44, 656970), (55, 525576), (60, 481778), (61, 473880), (66, 437980), (88, 328485), (110, 262788), (120, 240889), (122, 236940), (132, 218990), (165, 175192), (183, 157960), (220, 131394), (244, 118470), (264, 109495), (305, 94776), (330, 87596), (359, 80520), (366, 78980), (440, 65697), (488, 59235), (610, 47388), (660, 43798), (671, 43080), (718, 40260), (732, 39490), (915, 31592), (1077, 26840), (1220, 23694), (1320, 21899), (1342, 21540), (1436, 20130), (1464, 19745), (1795, 16104), (1830, 15796), (2013, 14360), (2154, 13420), (2440, 11847), (2684, 10770), (2872, 10065), (3355, 8616), (3590, 8052), (3660, 7898), (3949, 7320), (4026, 7180), (4308, 6710), (5368, 5385)]