1853645620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 4102640640

約数和(自身を除く): 2248995020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 139, 155, 157, 274, 278, 310, 314, 548, 556, 620, 628, 685, 695, 785, 1370, 1390, 1570, 2740, 2780, 3140, 4247, 4309, 4867, 8494, 8618, 9734, 16988, 17236, 19043, 19468, 21235, 21509, 21545, 21823, 24335, 38086, 42470, 43018, 43090, 43646, 48670, 76172, 84940, 86036, 86180, 87292, 95215, 97340, 107545, 109115, 190430, 215090, 218230, 380860, 430180, 436460, 590333, 666779, 676513, 1180666, 1333558, 1353026, 2361332, 2667116, 2706052, 2951665, 2989751, 3333895, 3382565, 5903330, 5979502, 6667790, 6765130, 11806660, 11959004, 13335580, 13530260, 14948755, 29897510, 59795020, 92682281, 185364562, 370729124, 463411405, 926822810, 1853645620]

約数ペア:

[(1, 1853645620), (2, 926822810), (4, 463411405), (5, 370729124), (10, 185364562), (20, 92682281), (31, 59795020), (62, 29897510), (124, 14948755), (137, 13530260), (139, 13335580), (155, 11959004), (157, 11806660), (274, 6765130), (278, 6667790), (310, 5979502), (314, 5903330), (548, 3382565), (556, 3333895), (620, 2989751), (628, 2951665), (685, 2706052), (695, 2667116), (785, 2361332), (1370, 1353026), (1390, 1333558), (1570, 1180666), (2740, 676513), (2780, 666779), (3140, 590333), (4247, 436460), (4309, 430180), (4867, 380860), (8494, 218230), (8618, 215090), (9734, 190430), (16988, 109115), (17236, 107545), (19043, 97340), (19468, 95215), (21235, 87292), (21509, 86180), (21545, 86036), (21823, 84940), (24335, 76172), (38086, 48670), (42470, 43646), (43018, 43090)]