1940205680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1531}}^1$

素因数の和:1655

約数の個数: 160

約数和(自身を含む): 5398130688

約数和(自身を除く): 3457925008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 73, 80, 112, 124, 140, 146, 155, 217, 248, 280, 292, 310, 365, 434, 496, 511, 560, 584, 620, 730, 868, 1022, 1085, 1168, 1240, 1460, 1531, 1736, 2044, 2170, 2263, 2480, 2555, 2920, 3062, 3472, 4088, 4340, 4526, 5110, 5840, 6124, 7655, 8176, 8680, 9052, 10220, 10717, 11315, 12248, 15310, 15841, 17360, 18104, 20440, 21434, 22630, 24496, 30620, 31682, 36208, 40880, 42868, 45260, 47461, 53585, 61240, 63364, 79205, 85736, 90520, 94922, 107170, 111763, 122480, 126728, 158410, 171472, 181040, 189844, 214340, 223526, 237305, 253456, 316820, 332227, 379688, 428680, 447052, 474610, 558815, 633640, 664454, 759376, 782341, 857360, 894104, 949220, 1117630, 1267280, 1328908, 1564682, 1661135, 1788208, 1898440, 2235260, 2657816, 3129364, 3322270, 3464653, 3796880, 3911705, 4470520, 5315632, 6258728, 6644540, 6929306, 7823410, 8941040, 12517456, 13289080, 13858612, 15646820, 17323265, 24252571, 26578160, 27717224, 31293640, 34646530, 48505142, 55434448, 62587280, 69293060, 97010284, 121262855, 138586120, 194020568, 242525710, 277172240, 388041136, 485051420, 970102840, 1940205680]

約数ペア:

[(1, 1940205680), (2, 970102840), (4, 485051420), (5, 388041136), (7, 277172240), (8, 242525710), (10, 194020568), (14, 138586120), (16, 121262855), (20, 97010284), (28, 69293060), (31, 62587280), (35, 55434448), (40, 48505142), (56, 34646530), (62, 31293640), (70, 27717224), (73, 26578160), (80, 24252571), (112, 17323265), (124, 15646820), (140, 13858612), (146, 13289080), (155, 12517456), (217, 8941040), (248, 7823410), (280, 6929306), (292, 6644540), (310, 6258728), (365, 5315632), (434, 4470520), (496, 3911705), (511, 3796880), (560, 3464653), (584, 3322270), (620, 3129364), (730, 2657816), (868, 2235260), (1022, 1898440), (1085, 1788208), (1168, 1661135), (1240, 1564682), (1460, 1328908), (1531, 1267280), (1736, 1117630), (2044, 949220), (2170, 894104), (2263, 857360), (2480, 782341), (2555, 759376), (2920, 664454), (3062, 633640), (3472, 558815), (4088, 474610), (4340, 447052), (4526, 428680), (5110, 379688), (5840, 332227), (6124, 316820), (7655, 253456), (8176, 237305), (8680, 223526), (9052, 214340), (10220, 189844), (10717, 181040), (11315, 171472), (12248, 158410), (15310, 126728), (15841, 122480), (17360, 111763), (18104, 107170), (20440, 94922), (21434, 90520), (22630, 85736), (24496, 79205), (30620, 63364), (31682, 61240), (36208, 53585), (40880, 47461), (42868, 45260)]