17971720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 48988800

約数和(自身を除く): 31017080

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 107, 130, 136, 152, 170, 190, 214, 221, 247, 260, 323, 340, 380, 428, 442, 494, 520, 535, 646, 680, 760, 856, 884, 988, 1070, 1105, 1235, 1292, 1391, 1615, 1768, 1819, 1976, 2033, 2140, 2210, 2470, 2584, 2782, 3230, 3638, 4066, 4199, 4280, 4420, 4940, 5564, 6460, 6955, 7276, 8132, 8398, 8840, 9095, 9880, 10165, 11128, 12920, 13910, 14552, 16264, 16796, 18190, 20330, 20995, 23647, 26429, 27820, 33592, 34561, 36380, 40660, 41990, 47294, 52858, 55640, 69122, 72760, 81320, 83980, 94588, 105716, 118235, 132145, 138244, 167960, 172805, 189176, 211432, 236470, 264290, 276488, 345610, 449293, 472940, 528580, 691220, 898586, 945880, 1057160, 1382440, 1797172, 2246465, 3594344, 4492930, 8985860, 17971720]

約数ペア:

[(1, 17971720), (2, 8985860), (4, 4492930), (5, 3594344), (8, 2246465), (10, 1797172), (13, 1382440), (17, 1057160), (19, 945880), (20, 898586), (26, 691220), (34, 528580), (38, 472940), (40, 449293), (52, 345610), (65, 276488), (68, 264290), (76, 236470), (85, 211432), (95, 189176), (104, 172805), (107, 167960), (130, 138244), (136, 132145), (152, 118235), (170, 105716), (190, 94588), (214, 83980), (221, 81320), (247, 72760), (260, 69122), (323, 55640), (340, 52858), (380, 47294), (428, 41990), (442, 40660), (494, 36380), (520, 34561), (535, 33592), (646, 27820), (680, 26429), (760, 23647), (856, 20995), (884, 20330), (988, 18190), (1070, 16796), (1105, 16264), (1235, 14552), (1292, 13910), (1391, 12920), (1615, 11128), (1768, 10165), (1819, 9880), (1976, 9095), (2033, 8840), (2140, 8398), (2210, 8132), (2470, 7276), (2584, 6955), (2782, 6460), (3230, 5564), (3638, 4940), (4066, 4420), (4199, 4280)]