78307540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 180986400

約数和(自身を除く): 102678860

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 41, 58, 74, 82, 89, 116, 145, 148, 164, 178, 185, 205, 290, 356, 370, 410, 445, 580, 740, 820, 890, 1073, 1189, 1517, 1780, 2146, 2378, 2581, 3034, 3293, 3649, 4292, 4756, 5162, 5365, 5945, 6068, 6586, 7298, 7585, 10324, 10730, 11890, 12905, 13172, 14596, 15170, 16465, 18245, 21460, 23780, 25810, 30340, 32930, 36490, 43993, 51620, 65860, 72980, 87986, 95497, 105821, 135013, 175972, 190994, 211642, 219965, 270026, 381988, 423284, 439930, 477485, 529105, 540052, 675065, 879860, 954970, 1058210, 1350130, 1909940, 2116420, 2700260, 3915377, 7830754, 15661508, 19576885, 39153770, 78307540]

約数ペア:

[(1, 78307540), (2, 39153770), (4, 19576885), (5, 15661508), (10, 7830754), (20, 3915377), (29, 2700260), (37, 2116420), (41, 1909940), (58, 1350130), (74, 1058210), (82, 954970), (89, 879860), (116, 675065), (145, 540052), (148, 529105), (164, 477485), (178, 439930), (185, 423284), (205, 381988), (290, 270026), (356, 219965), (370, 211642), (410, 190994), (445, 175972), (580, 135013), (740, 105821), (820, 95497), (890, 87986), (1073, 72980), (1189, 65860), (1517, 51620), (1780, 43993), (2146, 36490), (2378, 32930), (2581, 30340), (3034, 25810), (3293, 23780), (3649, 21460), (4292, 18245), (4756, 16465), (5162, 15170), (5365, 14596), (5945, 13172), (6068, 12905), (6586, 11890), (7298, 10730), (7585, 10324)]