30689880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 100638720

約数和(自身を除く): 69948840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 191, 195, 206, 260, 309, 312, 382, 390, 412, 515, 520, 573, 618, 764, 780, 824, 955, 1030, 1146, 1236, 1339, 1528, 1545, 1560, 1910, 2060, 2292, 2472, 2483, 2678, 2865, 3090, 3820, 4017, 4120, 4584, 4966, 5356, 5730, 6180, 6695, 7449, 7640, 8034, 9932, 10712, 11460, 12360, 12415, 13390, 14898, 16068, 19673, 19864, 20085, 22920, 24830, 26780, 29796, 32136, 37245, 39346, 40170, 49660, 53560, 59019, 59592, 74490, 78692, 80340, 98365, 99320, 118038, 148980, 157384, 160680, 196730, 236076, 255749, 295095, 297960, 393460, 472152, 511498, 590190, 767247, 786920, 1022996, 1180380, 1278745, 1534494, 2045992, 2360760, 2557490, 3068988, 3836235, 5114980, 6137976, 7672470, 10229960, 15344940, 30689880]

約数ペア:

[(1, 30689880), (2, 15344940), (3, 10229960), (4, 7672470), (5, 6137976), (6, 5114980), (8, 3836235), (10, 3068988), (12, 2557490), (13, 2360760), (15, 2045992), (20, 1534494), (24, 1278745), (26, 1180380), (30, 1022996), (39, 786920), (40, 767247), (52, 590190), (60, 511498), (65, 472152), (78, 393460), (103, 297960), (104, 295095), (120, 255749), (130, 236076), (156, 196730), (191, 160680), (195, 157384), (206, 148980), (260, 118038), (309, 99320), (312, 98365), (382, 80340), (390, 78692), (412, 74490), (515, 59592), (520, 59019), (573, 53560), (618, 49660), (764, 40170), (780, 39346), (824, 37245), (955, 32136), (1030, 29796), (1146, 26780), (1236, 24830), (1339, 22920), (1528, 20085), (1545, 19864), (1560, 19673), (1910, 16068), (2060, 14898), (2292, 13390), (2472, 12415), (2483, 12360), (2678, 11460), (2865, 10712), (3090, 9932), (3820, 8034), (4017, 7640), (4120, 7449), (4584, 6695), (4966, 6180), (5356, 5730)]