31371690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 91422720

約数和(自身を除く): 60051030

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 61, 62, 70, 79, 93, 105, 122, 155, 158, 183, 186, 210, 217, 237, 305, 310, 366, 395, 427, 434, 465, 474, 553, 610, 651, 790, 854, 915, 930, 1085, 1106, 1185, 1281, 1302, 1659, 1830, 1891, 2135, 2170, 2370, 2449, 2562, 2765, 3255, 3318, 3782, 4270, 4819, 4898, 5530, 5673, 6405, 6510, 7347, 8295, 9455, 9638, 11346, 12245, 12810, 13237, 14457, 14694, 16590, 17143, 18910, 24095, 24490, 26474, 28365, 28914, 33733, 34286, 36735, 39711, 48190, 51429, 56730, 66185, 67466, 72285, 73470, 79422, 85715, 101199, 102858, 132370, 144570, 149389, 168665, 171430, 198555, 202398, 257145, 298778, 337330, 397110, 448167, 505995, 514290, 746945, 896334, 1011990, 1045723, 1493890, 2091446, 2240835, 3137169, 4481670, 5228615, 6274338, 10457230, 15685845, 31371690]

約数ペア:

[(1, 31371690), (2, 15685845), (3, 10457230), (5, 6274338), (6, 5228615), (7, 4481670), (10, 3137169), (14, 2240835), (15, 2091446), (21, 1493890), (30, 1045723), (31, 1011990), (35, 896334), (42, 746945), (61, 514290), (62, 505995), (70, 448167), (79, 397110), (93, 337330), (105, 298778), (122, 257145), (155, 202398), (158, 198555), (183, 171430), (186, 168665), (210, 149389), (217, 144570), (237, 132370), (305, 102858), (310, 101199), (366, 85715), (395, 79422), (427, 73470), (434, 72285), (465, 67466), (474, 66185), (553, 56730), (610, 51429), (651, 48190), (790, 39711), (854, 36735), (915, 34286), (930, 33733), (1085, 28914), (1106, 28365), (1185, 26474), (1281, 24490), (1302, 24095), (1659, 18910), (1830, 17143), (1891, 16590), (2135, 14694), (2170, 14457), (2370, 13237), (2449, 12810), (2562, 12245), (2765, 11346), (3255, 9638), (3318, 9455), (3782, 8295), (4270, 7347), (4819, 6510), (4898, 6405), (5530, 5673)]