144256640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:722

約数の個数: 128

約数和(自身を含む): 388938240

約数和(自身を除く): 244681600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 661, 682, 704, 880, 992, 1240, 1322, 1364, 1408, 1705, 1760, 1984, 2480, 2644, 2728, 3305, 3410, 3520, 3968, 4960, 5288, 5456, 6610, 6820, 7040, 7271, 9920, 10576, 10912, 13220, 13640, 14542, 19840, 20491, 21152, 21824, 26440, 27280, 29084, 36355, 40982, 42304, 43648, 52880, 54560, 58168, 72710, 81964, 84608, 102455, 105760, 109120, 116336, 145420, 163928, 204910, 211520, 218240, 225401, 232672, 290840, 327856, 409820, 423040, 450802, 465344, 581680, 655712, 819640, 901604, 930688, 1127005, 1163360, 1311424, 1639280, 1803208, 2254010, 2326720, 2622848, 3278560, 3606416, 4508020, 4653440, 6557120, 7212832, 9016040, 13114240, 14425664, 18032080, 28851328, 36064160, 72128320, 144256640]

約数ペア:

[(1, 144256640), (2, 72128320), (4, 36064160), (5, 28851328), (8, 18032080), (10, 14425664), (11, 13114240), (16, 9016040), (20, 7212832), (22, 6557120), (31, 4653440), (32, 4508020), (40, 3606416), (44, 3278560), (55, 2622848), (62, 2326720), (64, 2254010), (80, 1803208), (88, 1639280), (110, 1311424), (124, 1163360), (128, 1127005), (155, 930688), (160, 901604), (176, 819640), (220, 655712), (248, 581680), (310, 465344), (320, 450802), (341, 423040), (352, 409820), (440, 327856), (496, 290840), (620, 232672), (640, 225401), (661, 218240), (682, 211520), (704, 204910), (880, 163928), (992, 145420), (1240, 116336), (1322, 109120), (1364, 105760), (1408, 102455), (1705, 84608), (1760, 81964), (1984, 72710), (2480, 58168), (2644, 54560), (2728, 52880), (3305, 43648), (3410, 42304), (3520, 40982), (3968, 36355), (4960, 29084), (5288, 27280), (5456, 26440), (6610, 21824), (6820, 21152), (7040, 20491), (7271, 19840), (9920, 14542), (10576, 13640), (10912, 13220)]