31817968

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:123

約数の個数: 90

約数和(自身を含む): 78196632

約数和(自身を除く): 46378664

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 41, 52, 56, 82, 91, 104, 112, 164, 169, 182, 208, 287, 328, 338, 364, 533, 574, 656, 676, 728, 1066, 1148, 1183, 1352, 1456, 1681, 2132, 2296, 2366, 2704, 3362, 3731, 4264, 4592, 4732, 6724, 6929, 7462, 8528, 9464, 11767, 13448, 13858, 14924, 18928, 21853, 23534, 26896, 27716, 29848, 43706, 47068, 48503, 55432, 59696, 87412, 94136, 97006, 110864, 152971, 174824, 188272, 194012, 284089, 305942, 349648, 388024, 568178, 611884, 776048, 1136356, 1223768, 1988623, 2272712, 2447536, 3977246, 4545424, 7954492, 15908984, 31817968]

約数ペア:

[(1, 31817968), (2, 15908984), (4, 7954492), (7, 4545424), (8, 3977246), (13, 2447536), (14, 2272712), (16, 1988623), (26, 1223768), (28, 1136356), (41, 776048), (52, 611884), (56, 568178), (82, 388024), (91, 349648), (104, 305942), (112, 284089), (164, 194012), (169, 188272), (182, 174824), (208, 152971), (287, 110864), (328, 97006), (338, 94136), (364, 87412), (533, 59696), (574, 55432), (656, 48503), (676, 47068), (728, 43706), (1066, 29848), (1148, 27716), (1183, 26896), (1352, 23534), (1456, 21853), (1681, 18928), (2132, 14924), (2296, 13858), (2366, 13448), (2704, 11767), (3362, 9464), (3731, 8528), (4264, 7462), (4592, 6929), (4732, 6724)]