640460386980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{521641}}^1$

素因数の和:522034

約数の個数: 144

約数和(自身を含む): 2050679030400

約数和(自身を除く): 1410218643420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 359, 380, 570, 684, 718, 855, 1077, 1140, 1436, 1710, 1795, 2154, 3231, 3420, 3590, 4308, 5385, 6462, 6821, 7180, 10770, 12924, 13642, 16155, 20463, 21540, 27284, 32310, 34105, 40926, 61389, 64620, 68210, 81852, 102315, 122778, 136420, 204630, 245556, 306945, 409260, 521641, 613890, 1043282, 1227780, 1564923, 2086564, 2608205, 3129846, 4694769, 5216410, 6259692, 7824615, 9389538, 9911179, 10432820, 15649230, 18779076, 19822358, 23473845, 29733537, 31298460, 39644716, 46947690, 49555895, 59467074, 89200611, 93895380, 99111790, 118934148, 148667685, 178401222, 187269119, 198223580, 297335370, 356802444, 374538238, 446003055, 561807357, 594670740, 749076476, 892006110, 936345595, 1123614714, 1685422071, 1784012220, 1872691190, 2247229428, 2809036785, 3370844142, 3558113261, 3745382380, 5618073570, 6741688284, 7116226522, 8427110355, 10674339783, 11236147140, 14232453044, 16854220710, 17790566305, 21348679566, 32023019349, 33708441420, 35581132610, 42697359132, 53371698915, 64046038698, 71162265220, 106743397830, 128092077396, 160115096745, 213486795660, 320230193490, 640460386980]

約数ペア:

[(1, 640460386980), (2, 320230193490), (3, 213486795660), (4, 160115096745), (5, 128092077396), (6, 106743397830), (9, 71162265220), (10, 64046038698), (12, 53371698915), (15, 42697359132), (18, 35581132610), (19, 33708441420), (20, 32023019349), (30, 21348679566), (36, 17790566305), (38, 16854220710), (45, 14232453044), (57, 11236147140), (60, 10674339783), (76, 8427110355), (90, 7116226522), (95, 6741688284), (114, 5618073570), (171, 3745382380), (180, 3558113261), (190, 3370844142), (228, 2809036785), (285, 2247229428), (342, 1872691190), (359, 1784012220), (380, 1685422071), (570, 1123614714), (684, 936345595), (718, 892006110), (855, 749076476), (1077, 594670740), (1140, 561807357), (1436, 446003055), (1710, 374538238), (1795, 356802444), (2154, 297335370), (3231, 198223580), (3420, 187269119), (3590, 178401222), (4308, 148667685), (5385, 118934148), (6462, 99111790), (6821, 93895380), (7180, 89200611), (10770, 59467074), (12924, 49555895), (13642, 46947690), (16155, 39644716), (20463, 31298460), (21540, 29733537), (27284, 23473845), (32310, 19822358), (34105, 18779076), (40926, 15649230), (61389, 10432820), (64620, 9911179), (68210, 9389538), (81852, 7824615), (102315, 6259692), (122778, 5216410), (136420, 4694769), (204630, 3129846), (245556, 2608205), (306945, 2086564), (409260, 1564923), (521641, 1227780), (613890, 1043282)]