28325960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 74995200

約数和(自身を除く): 46669240

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 47, 52, 61, 65, 76, 94, 95, 104, 122, 130, 152, 188, 190, 235, 244, 247, 260, 305, 376, 380, 470, 488, 494, 520, 610, 611, 760, 793, 893, 940, 988, 1159, 1220, 1222, 1235, 1586, 1786, 1880, 1976, 2318, 2440, 2444, 2470, 2867, 3055, 3172, 3572, 3965, 4465, 4636, 4888, 4940, 5734, 5795, 6110, 6344, 7144, 7930, 8930, 9272, 9880, 11468, 11590, 11609, 12220, 14335, 15067, 15860, 17860, 22936, 23180, 23218, 24440, 28670, 30134, 31720, 35720, 37271, 46360, 46436, 54473, 57340, 58045, 60268, 74542, 75335, 92872, 108946, 114680, 116090, 120536, 149084, 150670, 186355, 217892, 232180, 272365, 298168, 301340, 372710, 435784, 464360, 544730, 602680, 708149, 745420, 1089460, 1416298, 1490840, 2178920, 2832596, 3540745, 5665192, 7081490, 14162980, 28325960]

約数ペア:

[(1, 28325960), (2, 14162980), (4, 7081490), (5, 5665192), (8, 3540745), (10, 2832596), (13, 2178920), (19, 1490840), (20, 1416298), (26, 1089460), (38, 745420), (40, 708149), (47, 602680), (52, 544730), (61, 464360), (65, 435784), (76, 372710), (94, 301340), (95, 298168), (104, 272365), (122, 232180), (130, 217892), (152, 186355), (188, 150670), (190, 149084), (235, 120536), (244, 116090), (247, 114680), (260, 108946), (305, 92872), (376, 75335), (380, 74542), (470, 60268), (488, 58045), (494, 57340), (520, 54473), (610, 46436), (611, 46360), (760, 37271), (793, 35720), (893, 31720), (940, 30134), (988, 28670), (1159, 24440), (1220, 23218), (1222, 23180), (1235, 22936), (1586, 17860), (1786, 15860), (1880, 15067), (1976, 14335), (2318, 12220), (2440, 11609), (2444, 11590), (2470, 11468), (2867, 9880), (3055, 9272), (3172, 8930), (3572, 7930), (3965, 7144), (4465, 6344), (4636, 6110), (4888, 5795), (4940, 5734)]