408048520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 128

約数和(自身を含む): 1063860480

約数和(自身を除く): 655811960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 61, 88, 92, 110, 115, 122, 184, 220, 230, 244, 253, 305, 440, 460, 488, 506, 610, 661, 671, 920, 1012, 1220, 1265, 1322, 1342, 1403, 2024, 2440, 2530, 2644, 2684, 2806, 3305, 3355, 5060, 5288, 5368, 5612, 6610, 6710, 7015, 7271, 10120, 11224, 13220, 13420, 14030, 14542, 15203, 15433, 26440, 26840, 28060, 29084, 30406, 30866, 36355, 40321, 56120, 58168, 60812, 61732, 72710, 76015, 77165, 80642, 121624, 123464, 145420, 152030, 154330, 161284, 167233, 201605, 290840, 304060, 308660, 322568, 334466, 403210, 443531, 608120, 617320, 668932, 806420, 836165, 887062, 927383, 1337864, 1612840, 1672330, 1774124, 1854766, 2217655, 3344660, 3548248, 3709532, 4435310, 4636915, 6689320, 7419064, 8870620, 9273830, 10201213, 17741240, 18547660, 20402426, 37095320, 40804852, 51006065, 81609704, 102012130, 204024260, 408048520]

約数ペア:

[(1, 408048520), (2, 204024260), (4, 102012130), (5, 81609704), (8, 51006065), (10, 40804852), (11, 37095320), (20, 20402426), (22, 18547660), (23, 17741240), (40, 10201213), (44, 9273830), (46, 8870620), (55, 7419064), (61, 6689320), (88, 4636915), (92, 4435310), (110, 3709532), (115, 3548248), (122, 3344660), (184, 2217655), (220, 1854766), (230, 1774124), (244, 1672330), (253, 1612840), (305, 1337864), (440, 927383), (460, 887062), (488, 836165), (506, 806420), (610, 668932), (661, 617320), (671, 608120), (920, 443531), (1012, 403210), (1220, 334466), (1265, 322568), (1322, 308660), (1342, 304060), (1403, 290840), (2024, 201605), (2440, 167233), (2530, 161284), (2644, 154330), (2684, 152030), (2806, 145420), (3305, 123464), (3355, 121624), (5060, 80642), (5288, 77165), (5368, 76015), (5612, 72710), (6610, 61732), (6710, 60812), (7015, 58168), (7271, 56120), (10120, 40321), (11224, 36355), (13220, 30866), (13420, 30406), (14030, 29084), (14542, 28060), (15203, 26840), (15433, 26440)]