19822920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 65197440

約数和(自身を除く): 45374520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 97, 104, 120, 130, 131, 156, 194, 195, 260, 262, 291, 312, 388, 390, 393, 485, 520, 524, 582, 655, 776, 780, 786, 970, 1048, 1164, 1261, 1310, 1455, 1560, 1572, 1703, 1940, 1965, 2328, 2522, 2620, 2910, 3144, 3406, 3783, 3880, 3930, 5044, 5109, 5240, 5820, 6305, 6812, 7566, 7860, 8515, 10088, 10218, 11640, 12610, 12707, 13624, 15132, 15720, 17030, 18915, 20436, 25220, 25414, 25545, 30264, 34060, 37830, 38121, 40872, 50440, 50828, 51090, 63535, 68120, 75660, 76242, 101656, 102180, 127070, 151320, 152484, 165191, 190605, 204360, 254140, 304968, 330382, 381210, 495573, 508280, 660764, 762420, 825955, 991146, 1321528, 1524840, 1651910, 1982292, 2477865, 3303820, 3964584, 4955730, 6607640, 9911460, 19822920]

約数ペア:

[(1, 19822920), (2, 9911460), (3, 6607640), (4, 4955730), (5, 3964584), (6, 3303820), (8, 2477865), (10, 1982292), (12, 1651910), (13, 1524840), (15, 1321528), (20, 991146), (24, 825955), (26, 762420), (30, 660764), (39, 508280), (40, 495573), (52, 381210), (60, 330382), (65, 304968), (78, 254140), (97, 204360), (104, 190605), (120, 165191), (130, 152484), (131, 151320), (156, 127070), (194, 102180), (195, 101656), (260, 76242), (262, 75660), (291, 68120), (312, 63535), (388, 51090), (390, 50828), (393, 50440), (485, 40872), (520, 38121), (524, 37830), (582, 34060), (655, 30264), (776, 25545), (780, 25414), (786, 25220), (970, 20436), (1048, 18915), (1164, 17030), (1261, 15720), (1310, 15132), (1455, 13624), (1560, 12707), (1572, 12610), (1703, 11640), (1940, 10218), (1965, 10088), (2328, 8515), (2522, 7860), (2620, 7566), (2910, 6812), (3144, 6305), (3406, 5820), (3783, 5240), (3880, 5109), (3930, 5044)]