31318920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:684

約数の個数: 128

約数和(自身を含む): 106790400

約数和(自身を除く): 75471480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 470, 540, 564, 617, 705, 846, 940, 1080, 1128, 1234, 1269, 1410, 1692, 1851, 1880, 2115, 2468, 2538, 2820, 3085, 3384, 3702, 4230, 4936, 5076, 5553, 5640, 6170, 6345, 7404, 8460, 9255, 10152, 11106, 12340, 12690, 14808, 16659, 16920, 18510, 22212, 24680, 25380, 27765, 28999, 33318, 37020, 44424, 50760, 55530, 57998, 66636, 74040, 83295, 86997, 111060, 115996, 133272, 144995, 166590, 173994, 222120, 231992, 260991, 289990, 333180, 347988, 434985, 521982, 579980, 666360, 695976, 782973, 869970, 1043964, 1159960, 1304955, 1565946, 1739940, 2087928, 2609910, 3131892, 3479880, 3914865, 5219820, 6263784, 7829730, 10439640, 15659460, 31318920]

約数ペア:

[(1, 31318920), (2, 15659460), (3, 10439640), (4, 7829730), (5, 6263784), (6, 5219820), (8, 3914865), (9, 3479880), (10, 3131892), (12, 2609910), (15, 2087928), (18, 1739940), (20, 1565946), (24, 1304955), (27, 1159960), (30, 1043964), (36, 869970), (40, 782973), (45, 695976), (47, 666360), (54, 579980), (60, 521982), (72, 434985), (90, 347988), (94, 333180), (108, 289990), (120, 260991), (135, 231992), (141, 222120), (180, 173994), (188, 166590), (216, 144995), (235, 133272), (270, 115996), (282, 111060), (360, 86997), (376, 83295), (423, 74040), (470, 66636), (540, 57998), (564, 55530), (617, 50760), (705, 44424), (846, 37020), (940, 33318), (1080, 28999), (1128, 27765), (1234, 25380), (1269, 24680), (1410, 22212), (1692, 18510), (1851, 16920), (1880, 16659), (2115, 14808), (2468, 12690), (2538, 12340), (2820, 11106), (3085, 10152), (3384, 9255), (3702, 8460), (4230, 7404), (4936, 6345), (5076, 6170), (5553, 5640)]