31133180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 72432864

約数和(自身を除く): 41299684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 151, 169, 244, 260, 302, 305, 338, 604, 610, 676, 755, 793, 845, 1220, 1510, 1586, 1690, 1963, 3020, 3172, 3380, 3926, 3965, 7852, 7930, 9211, 9815, 10309, 15860, 18422, 19630, 20618, 25519, 36844, 39260, 41236, 46055, 51038, 51545, 92110, 102076, 103090, 119743, 127595, 184220, 206180, 239486, 255190, 478972, 510380, 598715, 1197430, 1556659, 2394860, 3113318, 6226636, 7783295, 15566590, 31133180]

約数ペア:

[(1, 31133180), (2, 15566590), (4, 7783295), (5, 6226636), (10, 3113318), (13, 2394860), (20, 1556659), (26, 1197430), (52, 598715), (61, 510380), (65, 478972), (122, 255190), (130, 239486), (151, 206180), (169, 184220), (244, 127595), (260, 119743), (302, 103090), (305, 102076), (338, 92110), (604, 51545), (610, 51038), (676, 46055), (755, 41236), (793, 39260), (845, 36844), (1220, 25519), (1510, 20618), (1586, 19630), (1690, 18422), (1963, 15860), (3020, 10309), (3172, 9815), (3380, 9211), (3926, 7930), (3965, 7852)]