18916580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 26806300

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 41, 46, 59, 68, 82, 85, 92, 115, 118, 164, 170, 205, 230, 236, 295, 340, 391, 410, 460, 590, 697, 782, 820, 943, 1003, 1180, 1357, 1394, 1564, 1886, 1955, 2006, 2419, 2714, 2788, 3485, 3772, 3910, 4012, 4715, 4838, 5015, 5428, 6785, 6970, 7820, 9430, 9676, 10030, 12095, 13570, 13940, 16031, 18860, 20060, 23069, 24190, 27140, 32062, 41123, 46138, 48380, 55637, 64124, 80155, 82246, 92276, 111274, 115345, 160310, 164492, 205615, 222548, 230690, 278185, 320620, 411230, 461380, 556370, 822460, 945829, 1112740, 1891658, 3783316, 4729145, 9458290, 18916580]

約数ペア:

[(1, 18916580), (2, 9458290), (4, 4729145), (5, 3783316), (10, 1891658), (17, 1112740), (20, 945829), (23, 822460), (34, 556370), (41, 461380), (46, 411230), (59, 320620), (68, 278185), (82, 230690), (85, 222548), (92, 205615), (115, 164492), (118, 160310), (164, 115345), (170, 111274), (205, 92276), (230, 82246), (236, 80155), (295, 64124), (340, 55637), (391, 48380), (410, 46138), (460, 41123), (590, 32062), (697, 27140), (782, 24190), (820, 23069), (943, 20060), (1003, 18860), (1180, 16031), (1357, 13940), (1394, 13570), (1564, 12095), (1886, 10030), (1955, 9676), (2006, 9430), (2419, 7820), (2714, 6970), (2788, 6785), (3485, 5428), (3772, 5015), (3910, 4838), (4012, 4715)]