643880493490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2473}}^1\times {\mathrm{7793}}^1$

素因数の和:10543

約数の個数: 64

約数和(自身を含む): 1253661657696

約数和(自身を除く): 609781164206

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2473, 2570, 3341, 4946, 6682, 7793, 12365, 15586, 16705, 24730, 32149, 33410, 38965, 64298, 77930, 101309, 160745, 202618, 321490, 506545, 635561, 1013090, 1271122, 2002801, 3177805, 4005602, 6355610, 8262293, 10014005, 16524586, 19272089, 20028010, 26036413, 38544178, 41311465, 52072826, 82622930, 96360445, 130182065, 192720890, 250537157, 260364130, 501074314, 1252685785, 2505371570, 4952926873, 9905853746, 24764634365, 49529268730, 64388049349, 128776098698, 321940246745, 643880493490]

約数ペア:

[(1, 643880493490), (2, 321940246745), (5, 128776098698), (10, 64388049349), (13, 49529268730), (26, 24764634365), (65, 9905853746), (130, 4952926873), (257, 2505371570), (514, 1252685785), (1285, 501074314), (2473, 260364130), (2570, 250537157), (3341, 192720890), (4946, 130182065), (6682, 96360445), (7793, 82622930), (12365, 52072826), (15586, 41311465), (16705, 38544178), (24730, 26036413), (32149, 20028010), (33410, 19272089), (38965, 16524586), (64298, 10014005), (77930, 8262293), (101309, 6355610), (160745, 4005602), (202618, 3177805), (321490, 2002801), (506545, 1271122), (635561, 1013090)]