87721140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 273744576

約数和(自身を除く): 186023436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 52, 60, 65, 78, 82, 123, 130, 156, 164, 169, 195, 205, 211, 246, 260, 338, 390, 410, 422, 492, 507, 533, 615, 633, 676, 780, 820, 844, 845, 1014, 1055, 1066, 1230, 1266, 1599, 1690, 2028, 2110, 2132, 2460, 2532, 2535, 2665, 2743, 3165, 3198, 3380, 4220, 5070, 5330, 5486, 6330, 6396, 6929, 7995, 8229, 8651, 10140, 10660, 10972, 12660, 13715, 13858, 15990, 16458, 17302, 20787, 25953, 27430, 27716, 31980, 32916, 34604, 34645, 35659, 41145, 41574, 43255, 51906, 54860, 69290, 71318, 82290, 83148, 86510, 103812, 103935, 106977, 112463, 129765, 138580, 142636, 164580, 173020, 178295, 207870, 213954, 224926, 259530, 337389, 356590, 415740, 427908, 449852, 519060, 534885, 562315, 674778, 713180, 1069770, 1124630, 1349556, 1462019, 1686945, 2139540, 2249260, 2924038, 3373890, 4386057, 5848076, 6747780, 7310095, 8772114, 14620190, 17544228, 21930285, 29240380, 43860570, 87721140]

約数ペア:

[(1, 87721140), (2, 43860570), (3, 29240380), (4, 21930285), (5, 17544228), (6, 14620190), (10, 8772114), (12, 7310095), (13, 6747780), (15, 5848076), (20, 4386057), (26, 3373890), (30, 2924038), (39, 2249260), (41, 2139540), (52, 1686945), (60, 1462019), (65, 1349556), (78, 1124630), (82, 1069770), (123, 713180), (130, 674778), (156, 562315), (164, 534885), (169, 519060), (195, 449852), (205, 427908), (211, 415740), (246, 356590), (260, 337389), (338, 259530), (390, 224926), (410, 213954), (422, 207870), (492, 178295), (507, 173020), (533, 164580), (615, 142636), (633, 138580), (676, 129765), (780, 112463), (820, 106977), (844, 103935), (845, 103812), (1014, 86510), (1055, 83148), (1066, 82290), (1230, 71318), (1266, 69290), (1599, 54860), (1690, 51906), (2028, 43255), (2110, 41574), (2132, 41145), (2460, 35659), (2532, 34645), (2535, 34604), (2665, 32916), (2743, 31980), (3165, 27716), (3198, 27430), (3380, 25953), (4220, 20787), (5070, 17302), (5330, 16458), (5486, 15990), (6330, 13858), (6396, 13715), (6929, 12660), (7995, 10972), (8229, 10660), (8651, 10140)]