4080660020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{743}}^1$

素因数の和:1017

約数の個数: 96

約数和(自身を含む): 9186912000

約数和(自身を除く): 5106251980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 149, 190, 194, 298, 380, 388, 485, 596, 743, 745, 970, 1486, 1490, 1843, 1940, 2831, 2972, 2980, 3686, 3715, 5662, 7372, 7430, 9215, 11324, 14117, 14155, 14453, 14860, 18430, 28234, 28310, 28906, 36860, 56468, 56620, 57812, 70585, 72071, 72265, 110707, 141170, 144142, 144530, 221414, 274607, 282340, 288284, 289060, 360355, 442828, 549214, 553535, 720710, 1098428, 1107070, 1369349, 1373035, 1441420, 2103433, 2214140, 2738698, 2746070, 4206866, 5477396, 5492140, 6846745, 8413732, 10517165, 10738579, 13693490, 21034330, 21477158, 27386980, 42068660, 42954316, 53692895, 107385790, 204033001, 214771580, 408066002, 816132004, 1020165005, 2040330010, 4080660020]

約数ペア:

[(1, 4080660020), (2, 2040330010), (4, 1020165005), (5, 816132004), (10, 408066002), (19, 214771580), (20, 204033001), (38, 107385790), (76, 53692895), (95, 42954316), (97, 42068660), (149, 27386980), (190, 21477158), (194, 21034330), (298, 13693490), (380, 10738579), (388, 10517165), (485, 8413732), (596, 6846745), (743, 5492140), (745, 5477396), (970, 4206866), (1486, 2746070), (1490, 2738698), (1843, 2214140), (1940, 2103433), (2831, 1441420), (2972, 1373035), (2980, 1369349), (3686, 1107070), (3715, 1098428), (5662, 720710), (7372, 553535), (7430, 549214), (9215, 442828), (11324, 360355), (14117, 289060), (14155, 288284), (14453, 282340), (14860, 274607), (18430, 221414), (28234, 144530), (28310, 144142), (28906, 141170), (36860, 110707), (56468, 72265), (56620, 72071), (57812, 70585)]