78870220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 206458560

約数和(自身を除く): 127588340

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 109, 110, 115, 121, 130, 143, 218, 220, 230, 242, 253, 260, 286, 299, 436, 460, 484, 506, 545, 572, 598, 605, 715, 1012, 1090, 1196, 1199, 1210, 1265, 1417, 1430, 1495, 1573, 2180, 2398, 2420, 2507, 2530, 2783, 2834, 2860, 2990, 3146, 3289, 4796, 5014, 5060, 5566, 5668, 5980, 5995, 6292, 6578, 7085, 7865, 10028, 11132, 11990, 12535, 13156, 13189, 13915, 14170, 15587, 15730, 16445, 23980, 25070, 26378, 27577, 27830, 28340, 31174, 31460, 32591, 32890, 36179, 50140, 52756, 55154, 55660, 62348, 65182, 65780, 65945, 72358, 77935, 110308, 130364, 131890, 137885, 144716, 155870, 162955, 171457, 180895, 263780, 275770, 303347, 311740, 325910, 342914, 358501, 361790, 551540, 606694, 651820, 685828, 717002, 723580, 857285, 1213388, 1434004, 1516735, 1714570, 1792505, 3033470, 3429140, 3585010, 3943511, 6066940, 7170020, 7887022, 15774044, 19717555, 39435110, 78870220]

約数ペア:

[(1, 78870220), (2, 39435110), (4, 19717555), (5, 15774044), (10, 7887022), (11, 7170020), (13, 6066940), (20, 3943511), (22, 3585010), (23, 3429140), (26, 3033470), (44, 1792505), (46, 1714570), (52, 1516735), (55, 1434004), (65, 1213388), (92, 857285), (109, 723580), (110, 717002), (115, 685828), (121, 651820), (130, 606694), (143, 551540), (218, 361790), (220, 358501), (230, 342914), (242, 325910), (253, 311740), (260, 303347), (286, 275770), (299, 263780), (436, 180895), (460, 171457), (484, 162955), (506, 155870), (545, 144716), (572, 137885), (598, 131890), (605, 130364), (715, 110308), (1012, 77935), (1090, 72358), (1196, 65945), (1199, 65780), (1210, 65182), (1265, 62348), (1417, 55660), (1430, 55154), (1495, 52756), (1573, 50140), (2180, 36179), (2398, 32890), (2420, 32591), (2507, 31460), (2530, 31174), (2783, 28340), (2834, 27830), (2860, 27577), (2990, 26378), (3146, 25070), (3289, 23980), (4796, 16445), (5014, 15730), (5060, 15587), (5566, 14170), (5668, 13915), (5980, 13189), (5995, 13156), (6292, 12535), (6578, 11990), (7085, 11132), (7865, 10028)]