19136920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 51425280

約数和(自身を除く): 32288360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 31, 40, 44, 46, 55, 61, 62, 88, 92, 110, 115, 122, 124, 155, 184, 220, 230, 244, 248, 253, 305, 310, 341, 440, 460, 488, 506, 610, 620, 671, 682, 713, 920, 1012, 1220, 1240, 1265, 1342, 1364, 1403, 1426, 1705, 1891, 2024, 2440, 2530, 2684, 2728, 2806, 2852, 3355, 3410, 3565, 3782, 5060, 5368, 5612, 5704, 6710, 6820, 7015, 7130, 7564, 7843, 9455, 10120, 11224, 13420, 13640, 14030, 14260, 15128, 15433, 15686, 18910, 20801, 26840, 28060, 28520, 30866, 31372, 37820, 39215, 41602, 43493, 56120, 61732, 62744, 75640, 77165, 78430, 83204, 86986, 104005, 123464, 154330, 156860, 166408, 173972, 208010, 217465, 308660, 313720, 347944, 416020, 434930, 478423, 617320, 832040, 869860, 956846, 1739720, 1913692, 2392115, 3827384, 4784230, 9568460, 19136920]

約数ペア:

[(1, 19136920), (2, 9568460), (4, 4784230), (5, 3827384), (8, 2392115), (10, 1913692), (11, 1739720), (20, 956846), (22, 869860), (23, 832040), (31, 617320), (40, 478423), (44, 434930), (46, 416020), (55, 347944), (61, 313720), (62, 308660), (88, 217465), (92, 208010), (110, 173972), (115, 166408), (122, 156860), (124, 154330), (155, 123464), (184, 104005), (220, 86986), (230, 83204), (244, 78430), (248, 77165), (253, 75640), (305, 62744), (310, 61732), (341, 56120), (440, 43493), (460, 41602), (488, 39215), (506, 37820), (610, 31372), (620, 30866), (671, 28520), (682, 28060), (713, 26840), (920, 20801), (1012, 18910), (1220, 15686), (1240, 15433), (1265, 15128), (1342, 14260), (1364, 14030), (1403, 13640), (1426, 13420), (1705, 11224), (1891, 10120), (2024, 9455), (2440, 7843), (2530, 7564), (2684, 7130), (2728, 7015), (2806, 6820), (2852, 6710), (3355, 5704), (3410, 5612), (3565, 5368), (3782, 5060)]