221565990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 128

約数和(自身を含む): 579944448

約数和(自身を除く): 358378458

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 37, 47, 62, 74, 93, 94, 111, 137, 141, 155, 185, 186, 222, 235, 274, 282, 310, 370, 411, 465, 470, 555, 685, 705, 822, 930, 1110, 1147, 1370, 1410, 1457, 1739, 2055, 2294, 2914, 3441, 3478, 4110, 4247, 4371, 5069, 5217, 5735, 6439, 6882, 7285, 8494, 8695, 8742, 10138, 10434, 11470, 12741, 12878, 14570, 15207, 17205, 17390, 19317, 21235, 21855, 25345, 25482, 26085, 30414, 32195, 34410, 38634, 42470, 43710, 50690, 52170, 53909, 63705, 64390, 76035, 96585, 107818, 127410, 152070, 157139, 161727, 193170, 199609, 238243, 269545, 314278, 323454, 399218, 471417, 476486, 539090, 598827, 714729, 785695, 808635, 942834, 998045, 1191215, 1197654, 1429458, 1571390, 1617270, 1996090, 2357085, 2382430, 2994135, 3573645, 4714170, 5988270, 7147290, 7385533, 14771066, 22156599, 36927665, 44313198, 73855330, 110782995, 221565990]

約数ペア:

[(1, 221565990), (2, 110782995), (3, 73855330), (5, 44313198), (6, 36927665), (10, 22156599), (15, 14771066), (30, 7385533), (31, 7147290), (37, 5988270), (47, 4714170), (62, 3573645), (74, 2994135), (93, 2382430), (94, 2357085), (111, 1996090), (137, 1617270), (141, 1571390), (155, 1429458), (185, 1197654), (186, 1191215), (222, 998045), (235, 942834), (274, 808635), (282, 785695), (310, 714729), (370, 598827), (411, 539090), (465, 476486), (470, 471417), (555, 399218), (685, 323454), (705, 314278), (822, 269545), (930, 238243), (1110, 199609), (1147, 193170), (1370, 161727), (1410, 157139), (1457, 152070), (1739, 127410), (2055, 107818), (2294, 96585), (2914, 76035), (3441, 64390), (3478, 63705), (4110, 53909), (4247, 52170), (4371, 50690), (5069, 43710), (5217, 42470), (5735, 38634), (6439, 34410), (6882, 32195), (7285, 30414), (8494, 26085), (8695, 25482), (8742, 25345), (10138, 21855), (10434, 21235), (11470, 19317), (12741, 17390), (12878, 17205), (14570, 15207)]