19990320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:259

約数の個数: 160

約数和(自身を含む): 72233472

約数和(自身を除く): 52243152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 73, 80, 84, 105, 112, 120, 140, 146, 163, 168, 210, 219, 240, 280, 292, 326, 336, 365, 420, 438, 489, 511, 560, 584, 652, 730, 815, 840, 876, 978, 1022, 1095, 1141, 1168, 1304, 1460, 1533, 1630, 1680, 1752, 1956, 2044, 2190, 2282, 2445, 2555, 2608, 2920, 3066, 3260, 3423, 3504, 3912, 4088, 4380, 4564, 4890, 5110, 5705, 5840, 6132, 6520, 6846, 7665, 7824, 8176, 8760, 9128, 9780, 10220, 11410, 11899, 12264, 13040, 13692, 15330, 17115, 17520, 18256, 19560, 20440, 22820, 23798, 24528, 27384, 30660, 34230, 35697, 39120, 40880, 45640, 47596, 54768, 59495, 61320, 68460, 71394, 83293, 91280, 95192, 118990, 122640, 136920, 142788, 166586, 178485, 190384, 237980, 249879, 273840, 285576, 333172, 356970, 416465, 475960, 499758, 571152, 666344, 713940, 832930, 951920, 999516, 1249395, 1332688, 1427880, 1665860, 1999032, 2498790, 2855760, 3331720, 3998064, 4997580, 6663440, 9995160, 19990320]

約数ペア:

[(1, 19990320), (2, 9995160), (3, 6663440), (4, 4997580), (5, 3998064), (6, 3331720), (7, 2855760), (8, 2498790), (10, 1999032), (12, 1665860), (14, 1427880), (15, 1332688), (16, 1249395), (20, 999516), (21, 951920), (24, 832930), (28, 713940), (30, 666344), (35, 571152), (40, 499758), (42, 475960), (48, 416465), (56, 356970), (60, 333172), (70, 285576), (73, 273840), (80, 249879), (84, 237980), (105, 190384), (112, 178485), (120, 166586), (140, 142788), (146, 136920), (163, 122640), (168, 118990), (210, 95192), (219, 91280), (240, 83293), (280, 71394), (292, 68460), (326, 61320), (336, 59495), (365, 54768), (420, 47596), (438, 45640), (489, 40880), (511, 39120), (560, 35697), (584, 34230), (652, 30660), (730, 27384), (815, 24528), (840, 23798), (876, 22820), (978, 20440), (1022, 19560), (1095, 18256), (1141, 17520), (1168, 17115), (1304, 15330), (1460, 13692), (1533, 13040), (1630, 12264), (1680, 11899), (1752, 11410), (1956, 10220), (2044, 9780), (2190, 9128), (2282, 8760), (2445, 8176), (2555, 7824), (2608, 7665), (2920, 6846), (3066, 6520), (3260, 6132), (3423, 5840), (3504, 5705), (3912, 5110), (4088, 4890), (4380, 4564)]