31504060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 85494528

約数和(自身を除く): 53990468

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 49, 61, 62, 68, 70, 85, 98, 119, 122, 124, 140, 155, 170, 196, 217, 238, 244, 245, 305, 310, 340, 427, 434, 476, 490, 527, 595, 610, 620, 833, 854, 868, 980, 1037, 1054, 1085, 1190, 1220, 1519, 1666, 1708, 1891, 2074, 2108, 2135, 2170, 2380, 2635, 2989, 3038, 3332, 3689, 3782, 4148, 4165, 4270, 4340, 5185, 5270, 5978, 6076, 7259, 7378, 7564, 7595, 8330, 8540, 9455, 10370, 10540, 11956, 13237, 14518, 14756, 14945, 15190, 16660, 18445, 18910, 20740, 25823, 26474, 29036, 29890, 30380, 32147, 36295, 36890, 37820, 50813, 51646, 52948, 59780, 64294, 66185, 72590, 73780, 92659, 101626, 103292, 128588, 129115, 132370, 145180, 160735, 185318, 203252, 225029, 254065, 258230, 264740, 321470, 370636, 450058, 463295, 508130, 516460, 642940, 900116, 926590, 1016260, 1125145, 1575203, 1853180, 2250290, 3150406, 4500580, 6300812, 7876015, 15752030, 31504060]

約数ペア:

[(1, 31504060), (2, 15752030), (4, 7876015), (5, 6300812), (7, 4500580), (10, 3150406), (14, 2250290), (17, 1853180), (20, 1575203), (28, 1125145), (31, 1016260), (34, 926590), (35, 900116), (49, 642940), (61, 516460), (62, 508130), (68, 463295), (70, 450058), (85, 370636), (98, 321470), (119, 264740), (122, 258230), (124, 254065), (140, 225029), (155, 203252), (170, 185318), (196, 160735), (217, 145180), (238, 132370), (244, 129115), (245, 128588), (305, 103292), (310, 101626), (340, 92659), (427, 73780), (434, 72590), (476, 66185), (490, 64294), (527, 59780), (595, 52948), (610, 51646), (620, 50813), (833, 37820), (854, 36890), (868, 36295), (980, 32147), (1037, 30380), (1054, 29890), (1085, 29036), (1190, 26474), (1220, 25823), (1519, 20740), (1666, 18910), (1708, 18445), (1891, 16660), (2074, 15190), (2108, 14945), (2135, 14756), (2170, 14518), (2380, 13237), (2635, 11956), (2989, 10540), (3038, 10370), (3332, 9455), (3689, 8540), (3782, 8330), (4148, 7595), (4165, 7564), (4270, 7378), (4340, 7259), (5185, 6076), (5270, 5978)]