19010420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 51988608

約数和(自身を除く): 32978188

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 23, 26, 34, 44, 46, 52, 55, 65, 68, 85, 92, 110, 115, 130, 143, 170, 187, 220, 221, 230, 253, 260, 286, 289, 299, 340, 374, 391, 442, 460, 506, 572, 578, 598, 715, 748, 782, 884, 935, 1012, 1105, 1156, 1196, 1265, 1430, 1445, 1495, 1564, 1870, 1955, 2210, 2431, 2530, 2860, 2890, 2990, 3179, 3289, 3740, 3757, 3910, 4301, 4420, 4862, 5060, 5083, 5780, 5980, 6358, 6578, 6647, 7514, 7820, 8602, 9724, 10166, 12155, 12716, 13156, 13294, 15028, 15895, 16445, 17204, 18785, 20332, 21505, 24310, 25415, 26588, 31790, 32890, 33235, 37570, 41327, 43010, 48620, 50830, 55913, 63580, 65780, 66470, 73117, 75140, 82654, 86020, 86411, 101660, 111826, 132940, 146234, 165308, 172822, 206635, 223652, 279565, 292468, 345644, 365585, 413270, 432055, 559130, 731170, 826540, 864110, 950521, 1118260, 1462340, 1728220, 1901042, 3802084, 4752605, 9505210, 19010420]

約数ペア:

[(1, 19010420), (2, 9505210), (4, 4752605), (5, 3802084), (10, 1901042), (11, 1728220), (13, 1462340), (17, 1118260), (20, 950521), (22, 864110), (23, 826540), (26, 731170), (34, 559130), (44, 432055), (46, 413270), (52, 365585), (55, 345644), (65, 292468), (68, 279565), (85, 223652), (92, 206635), (110, 172822), (115, 165308), (130, 146234), (143, 132940), (170, 111826), (187, 101660), (220, 86411), (221, 86020), (230, 82654), (253, 75140), (260, 73117), (286, 66470), (289, 65780), (299, 63580), (340, 55913), (374, 50830), (391, 48620), (442, 43010), (460, 41327), (506, 37570), (572, 33235), (578, 32890), (598, 31790), (715, 26588), (748, 25415), (782, 24310), (884, 21505), (935, 20332), (1012, 18785), (1105, 17204), (1156, 16445), (1196, 15895), (1265, 15028), (1430, 13294), (1445, 13156), (1495, 12716), (1564, 12155), (1870, 10166), (1955, 9724), (2210, 8602), (2431, 7820), (2530, 7514), (2860, 6647), (2890, 6578), (2990, 6358), (3179, 5980), (3289, 5780), (3740, 5083), (3757, 5060), (3910, 4862), (4301, 4420)]