18937280

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 112

約数和(自身を含む): 49158144

約数和(自身を除く): 30220864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 83, 92, 115, 124, 155, 160, 166, 184, 230, 248, 310, 320, 332, 368, 415, 460, 496, 620, 664, 713, 736, 830, 920, 992, 1240, 1328, 1426, 1472, 1660, 1840, 1909, 1984, 2480, 2573, 2656, 2852, 3320, 3565, 3680, 3818, 4960, 5146, 5312, 5704, 6640, 7130, 7360, 7636, 9545, 9920, 10292, 11408, 12865, 13280, 14260, 15272, 19090, 20584, 22816, 25730, 26560, 28520, 30544, 38180, 41168, 45632, 51460, 57040, 59179, 61088, 76360, 82336, 102920, 114080, 118358, 122176, 152720, 164672, 205840, 228160, 236716, 295895, 305440, 411680, 473432, 591790, 610880, 823360, 946864, 1183580, 1893728, 2367160, 3787456, 4734320, 9468640, 18937280]

約数ペア:

[(1, 18937280), (2, 9468640), (4, 4734320), (5, 3787456), (8, 2367160), (10, 1893728), (16, 1183580), (20, 946864), (23, 823360), (31, 610880), (32, 591790), (40, 473432), (46, 411680), (62, 305440), (64, 295895), (80, 236716), (83, 228160), (92, 205840), (115, 164672), (124, 152720), (155, 122176), (160, 118358), (166, 114080), (184, 102920), (230, 82336), (248, 76360), (310, 61088), (320, 59179), (332, 57040), (368, 51460), (415, 45632), (460, 41168), (496, 38180), (620, 30544), (664, 28520), (713, 26560), (736, 25730), (830, 22816), (920, 20584), (992, 19090), (1240, 15272), (1328, 14260), (1426, 13280), (1472, 12865), (1660, 11408), (1840, 10292), (1909, 9920), (1984, 9545), (2480, 7636), (2573, 7360), (2656, 7130), (2852, 6640), (3320, 5704), (3565, 5312), (3680, 5146), (3818, 4960)]